Unvigintiquingentillion

An unvigintiquingentillion is equal to \(10^{1566}\) in the short scale and \(10^{3126}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 521st -illion number.
In the long scale, \(10^{1566}\) is called unsexagintaducentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1566}\) (exact) 	\(1\times10^{1566}\) (exact)
Arrow notation 	\(10\uparrow 1566\) (exact) 	\(10\uparrow 1566\) (exact)
Steinhaus-Moser Notation 	568[3] 	569[3]
Chained arrow notation 	\(10\rightarrow 1566\) (exact) 	\(10\rightarrow 1566\) (exact)
Taro's multivariable Ackermann function	A(3,5199) 	A(3,5200)
BEAF & Bird's array notation 	{10,1566} (exact) 	{10,1566} (exact)
Hyper-E notation 	E1566 (exact) 	E1566 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(9)\) 	\(s(1)^3(\lambda x.x+1)(10)\)
m(n) map 	m(1)(568) 	m(1)(569)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(5189)\) 	\(f_2(5190)\)
Hardy hierarchy 	\(H_{\omega^2}(5189)\) 	\(H_{\omega^2}(5190)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 5+\omega 6+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 5+\omega 6+6}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3126}\) (exact) 	\(1\times10^{3126}\) (exact)
Arrow notation 	\(10\uparrow 3126\) (exact) 	\(10\uparrow 3126\) (exact)
Steinhaus-Moser Notation 	1036[3] 	1037[3]
Chained arrow notation 	\(10\rightarrow 3126\) (exact) 	\(10\rightarrow 3126\) (exact)
Taro's multivariable Ackermann function	A(3,10381) 	A(3,10382)
BEAF & Bird's array notation 	{10,3126} (exact) 	{10,3126} (exact)
Hyper-E notation 	E3126 (exact) 	E3126 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(10)\) 	\(s(1)^3(\lambda x.x+1)(11)\)
m(n) map 	m(1)(1036) 	m(1)(1037)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(10371)\) 	\(f_2(10372)\)
Hardy hierarchy 	\(H_{\omega^2}(10371)\) 	\(H_{\omega^2}(10372)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2+\omega 2+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2+\omega 2+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers