11555116854 has 32 divisors (see below), whose sum is σ = 23250585600. Its totient is φ = 3828348000.

The previous prime is 11555116849. The next prime is 11555116871. The reversal of 11555116854 is 45861155511.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659372 + ... + 1666320.

It is an arithmetic number, because the mean of its divisors is an integer number (726580800).

Almost surely, 2^11555116854 is an apocalyptic number.

11555116854 is an abundant number, since it is smaller than the sum of its proper divisors (11695468746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11555116854 is a wasteful number, since it uses less digits than its factorization.

11555116854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596.

The product of its digits is 120000, while the sum is 42.

The spelling of 11555116854 in words is "eleven billion, five hundred fifty-five million, one hundred sixteen thousand, eight hundred fifty-four".