Sexoctogintaoctingentillion

A sexoctogintaoctingentillion is equal to \(10^{2661}\) in the short scale and \(10^{5316}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 886th -illion number.
In the long scale, \(10^{2661}\) is called tresquadragintaquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2661}\) (exact) 	\(1\times10^{2661}\) (exact)
Arrow notation 	\(10\uparrow 2661\) (exact) 	\(10\uparrow 2661\) (exact)
Steinhaus-Moser Notation 	900[3] 	901[3]
Chained arrow notation 	\(10\rightarrow 2661\) (exact) 	\(10\rightarrow 2661\) (exact)
Taro's multivariable Ackermann function	A(3,8836) 	A(3,8837)
BEAF & Bird's array notation 	{10,2661} (exact) 	{10,2661} (exact)
Hyper-E notation 	E2661 (exact) 	E2661 (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)(900) 	m(1)(901)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8826)\) 	\(f_2(8827)\)
Hardy hierarchy 	\(H_{\omega^2}(8826)\) 	\(H_{\omega^2}(8827)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 6+\omega 6+1}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 6+\omega 6+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5316}\) (exact) 	\(1\times10^{5316}\) (exact)
Arrow notation 	\(10\uparrow 5316\) (exact) 	\(10\uparrow 5316\) (exact)
Steinhaus-Moser Notation 	1651[3] 	1652[3]
Chained arrow notation 	\(10\rightarrow 5316\) (exact) 	\(10\rightarrow 5316\) (exact)
Taro's multivariable Ackermann function	A(3,17656) 	A(3,17657)
BEAF & Bird's array notation 	{10,5316} (exact) 	{10,5316} (exact)
Hyper-E notation 	E5316 (exact) 	E5316 (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)(1651) 	m(1)(1652)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(17645)\) 	\(f_2(17646)\)
Hardy hierarchy 	\(H_{\omega^2}(17645)\) 	\(H_{\omega^2}(17646)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 3+\omega+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 3+\omega+6}}(10)\) (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