Quattuorquinquagintaoctingentillion

A quattuorquinquagintaoctingentillion is equal to \(10^{2565}\) in the short scale and \(10^{5124}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 854th -illion number.
In the long scale, \(10^{2565}\) is called septemvigintiquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2565}\) (exact) 	\(1\times10^{2565}\) (exact)
Arrow notation 	\(10\uparrow 2565\) (exact) 	\(10\uparrow 2565\) (exact)
Steinhaus-Moser Notation 	872[3] 	873[3]
Chained arrow notation 	\(10\rightarrow 2565\) (exact) 	\(10\rightarrow 2565\) (exact)
Taro's multivariable Ackermann function	A(3,8517) 	A(3,8518)
BEAF & Bird's array notation 	{10,2565} (exact) 	{10,2565} (exact)
Hyper-E notation 	E2565 (exact) 	E2565 (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)(872) 	m(1)(873)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8507)\) 	\(f_2(8508)\)
Hardy hierarchy 	\(H_{\omega^2}(8507)\) 	\(H_{\omega^2}(8508)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 5+\omega 6+5}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 5+\omega 6+5}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5124}\) (exact) 	\(1\times10^{5124}\) (exact)
Arrow notation 	\(10\uparrow 5124\) (exact) 	\(10\uparrow 5124\) (exact)
Steinhaus-Moser Notation 	1599[3] 	1600[3]
Chained arrow notation 	\(10\rightarrow 5124\) (exact) 	\(10\rightarrow 5124\) (exact)
Taro's multivariable Ackermann function	A(3,17018) 	A(3,17019)
BEAF & Bird's array notation 	{10,5124} (exact) 	{10,5124} (exact)
Hyper-E notation 	E5124 (exact) 	E5124 (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)(1599) 	m(1)(1600)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(17007)\) 	\(f_2(17008)\)
Hardy hierarchy 	\(H_{\omega^2}(17007)\) 	\(H_{\omega^2}(17008)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2+\omega 2+4}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2+\omega 2+4}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers