16777215

2²⁴-1; also a common erroneous number caused by math errors in a database (subtracting one from 0 in a number that should not be able to go negative, for example).

This shows up on MafiaScum.net from time to time in people's Inbox or as the number of posts made by spammers whose posts have been deleted. It is a transitory error, fixable by the Technical Admin.