Bentrizillion

Bentrizillion is equal to \(10^{6 \times 10^{6 \times 10^{6 \times 10^{6 \times \text{billion}}}}}\).Illion Numbers It is uncertain if billion means 10^9 or 10^12, although 10^12 is the more likely intended meaning considering the -illion is constructed in a nested long scale-like fashion. It is on Jonathan Bowers' -illion list, but he claims that it is not his invention — its origin is otherwise unknown.
Unusually for a Bowers-list illion, it has an exact Epstein system equivalent if billion is taken to be 10^12: gigillio-illio-illio-illion.
=== Approximations in other notations ===
Notation 	Approximation
Fast-growing hierarchy	\(f^5_2(29)\)
== Sources ==
== See also ==
Category:Numbers
Category:Illion
Category:Tetration level
Category:Tier 4 -illion numbers