Fzseventeen

Fzseventeen is equal to \(17^{17}\) = \(17\uparrow\uparrow2\) = 827,240,261,886,336,764,177.

Etymology
Fzseventeen is made out of the Fz- prefix and seventeen, which ends up becoming \(17^{17}\) when concatenated backwards, or 17 to the power of itself.