Decker

The decker is 10 tetrated to 10, or {10,10,2} in BEAF. The term was coined by Jonathan Bowers.

Informally, the number is one followed by "one followed by "one followed by "one followed by "one followed by "one followed by "one followed by "one followed by ten billion 0|zeroes" zeroes" zeroes" zeroes" zeroes" zeroes" zeroes" zeroes. It is also 10 pentated to 2. The number's name is probably a reference to the SI prefix deca- for 10.

This number is also called dekalogue by Sbiis Saibian; it is E1#10 in Hyper-E Notation.

In terms of recursion, decker is on par with the larger numbers giggol (10 tetrated to 100 = {10,100,2}) and grangol (E100#100).