Quattuorquinquagintasescentillion

A quattuorquinquagintasescentillion is equal to \(10^{1965}\) in the short scale and \(10^{3924}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 654th -illion number.
In the long scale, \(10^{1965}\) is called septemvigintitrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1965}\) (exact) 	\(1\times10^{1965}\) (exact)
Arrow notation 	\(10\uparrow 1965\) (exact) 	\(10\uparrow 1965\) (exact)
Steinhaus-Moser Notation 	691[3] 	692[3]
Chained arrow notation 	\(10\rightarrow 1965\) (exact) 	\(10\rightarrow 1965\) (exact)
Taro's multivariable Ackermann function	A(3,6524) 	A(3,6525)
BEAF & Bird's array notation 	{10,1965} (exact) 	{10,1965} (exact)
Hyper-E notation 	E1965 (exact) 	E1965 (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)(691) 	m(1)(692)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6514)\) 	\(f_2(6515)\)
Hardy hierarchy 	\(H_{\omega^2}(6514)\) 	\(H_{\omega^2}(6515)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 9+\omega 6+5}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 9+\omega 6+5}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3924}\) (exact) 	\(1\times10^{3924}\) (exact)
Arrow notation 	\(10\uparrow 3924\) (exact) 	\(10\uparrow 3924\) (exact)
Steinhaus-Moser Notation 	1264[3] 	1265[3]
Chained arrow notation 	\(10\rightarrow 3924\) (exact) 	\(10\rightarrow 3924\) (exact)
Taro's multivariable Ackermann function	A(3,13032) 	A(3,13033)
BEAF & Bird's array notation 	{10,3924} (exact) 	{10,3924} (exact)
Hyper-E notation 	E3924 (exact) 	E3924 (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)(1264) 	m(1)(1265)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(13021)\) 	\(f_2(13022)\)
Hardy hierarchy 	\(H_{\omega^2}(13021)\) 	\(H_{\omega^2}(13022)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 9+\omega 2+4}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 9+\omega 2+4}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers