115601660556 has 24 divisors (see below), whose sum is σ = 283933903680. Its totient is φ = 36505787472.

The previous prime is 115601660501. The next prime is 115601660563. The reversal of 115601660556 is 655066106511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253512186 + ... + 253512641.

It is an arithmetic number, because the mean of its divisors is an integer number (11830579320).

Almost surely, 2^115601660556 is an apocalyptic number.

It is an amenable number.

115601660556 is an abundant number, since it is smaller than the sum of its proper divisors (168332243124).

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

115601660556 is a wasteful number, since it uses less digits than its factorization.

115601660556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507024853 (or 507024851 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 115601660556 in words is "one hundred fifteen billion, six hundred one million, six hundred sixty thousand, five hundred fifty-six".