118581082112556 has 72 divisors (see below), whose sum is σ = 342569234891520. Its totient is φ = 33880144569696.

The previous prime is 118581082112539. The next prime is 118581082112579. The reversal of 118581082112556 is 655211280185811.

118581082112556 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 8 + 1 + 0 + 82 + 1 + 1 + 2 + 556 = 666.

118581082112556 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×118581082112556² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56605425 + ... + 58662903.

It is an arithmetic number, because the mean of its divisors is an integer number (4757906040160).

Almost surely, 2^{118581082112556} is an apocalyptic number.

It is an amenable number.

118581082112556 is an abundant number, since it is smaller than the sum of its proper divisors (223988152778964).

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

118581082112556 is a wasteful number, since it uses less digits than its factorization.

118581082112556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286203 (or 2286198 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 54.

The spelling of 118581082112556 in words is "one hundred eighteen trillion, five hundred eighty-one billion, eighty-two million, one hundred twelve thousand, five hundred fifty-six".