115516511656 has 32 divisors (see below), whose sum is σ = 266576567040. Its totient is φ = 45698839488.

The previous prime is 115516511641. The next prime is 115516511689. The reversal of 115516511656 is 656115615511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79337536 + ... + 79338991.

It is an arithmetic number, because the mean of its divisors is an integer number (8330517720).

Almost surely, 2^115516511656 is an apocalyptic number.

It is an amenable number.

115516511656 is an abundant number, since it is smaller than the sum of its proper divisors (151060055384).

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

115516511656 is a wasteful number, since it uses less digits than its factorization.

115516511656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158676553 (or 158676549 counting only the distinct ones).

The product of its digits is 135000, while the sum is 43.

The spelling of 115516511656 in words is "one hundred fifteen billion, five hundred sixteen million, five hundred eleven thousand, six hundred fifty-six".