Unvigintillion

An unvigintillion is equal to 1066 in short scale, or 10126 in long scale by Conway and Guy's naming systemExtensions to the -illions I: Henkle, Conway, and RowlettConway and Guy. (1995) "The book of Numbers" CopernicusThe Conway-Wechsler System or by Rowlett's naming system.Names for Large Numbers (Internet archive, archived at 6 June, 2002)
In the long scale, 1066 is called undecillion, which is commonly used in France and Germany.
Sbiis Saibian uses the term viginti-untillion for this number, since the order of terms should reverse after the 20th -illion, because on thirteen ~ nineteen the one's digit comes first, while on twenty-one and onwards the ten's digit comes first.Sbiis Saibian's Ultimate Large Number List Part I
== Examples ==
* The number of arrangements possible on a deck of cards is equal to 52!, which is approximately 80 unvigintillion.
* A black hole with the mass of the Sun would take around 2 unvigintillion years to evaporate due to Hawking radiation.
== Approximations ==
For short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{66}\) 	\(1\times10^{66}\)
Arrow notation 	\(10\uparrow66\) 	\(10\uparrow66\)
Steinhaus-Moser Notation 	40[3] 	41[3]
Copy notation 	9[66] 	1[67]
Taro's multivariable Ackermann function	A(3,216) 	A(3,217)
Pound-Star Notation 	#*(10,4,2,2,0,1)*8 	#*(10,0,6,3,4,4)*7
BEAF 	{10,66} 	{10,66}
Hyper-E notation 	E66 	E66
Bashicu matrix system 	(0)(0)(0)(0)[13335] 	(0)(0)(0)(0)[13336]
Hyperfactorial array notation 	50! 	51!
Fast-growing hierarchy 	\(f_2(211)\) 	\(f_2(212)\)
Hardy hierarchy 	\(H_{\omega^2}(211)\) 	\(H_{\omega^2}(212)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega6+6}}(10)\)	\(g_{\omega^{\omega6+6}}(10)\)
For long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{126}\) 	\(1\times10^{126}\)
Arrow notation 	\(10\uparrow126\) 	\(10\uparrow126\)
Steinhaus-Moser Notation 	68[3] 	69[3]
Copy notation 	9[126] 	1[127]
Taro's multivariable Ackermann function	A(3,415) 	A(3,416)
Pound-Star Notation 	#*(0,11,3,10,10,4,8,1)*9 	#*(1,11,3,10,10,4,8,1)*9
BEAF 	{10,126} 	{10,126}
Hyper-E notation 	E126 	E126
Bashicu matrix system 	(0)(0)(0)(0)(0)[8659] 	(0)(0)(0)(0)(0)[8660]
Hyperfactorial array notation 	83! 	84!
Fast-growing hierarchy 	\(f_2(409)\) 	\(f_2(410)\)
Hardy hierarchy 	\(H_{\omega^2}(409)\) 	\(H_{\omega^2}(410)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2+\omega2+8}}(10)\)	\(g_{\omega^{\omega^2+\omega2+8}}(10)\)
== List of prefixed numbers derived from vigintillion ==
Name 	Short scale	Long scale
unvigintillion 	1066 	10126
duovigintillion 	1069 	10132
tresvigintillion 	1072 	10138
quattuorvigintillion	1075 	10144
quinvigintillion 	1078 	10150
sesvigintillion 	1081 	10156
septemvigintillion 	1084 	10162
octovigintillion 	1087 	10168
novemvigintillion 	1090 	10174
== Sources ==
== See also ==
Category:Numbers
Category:Illion
Category:Class 2
Category:Vigintillion
Category:Powers of 10 with squarefree exponent
Category:Numbers with 30 to 100 digits
Category:Numbers with 101 to 999 digits