115897507656 has 128 divisors (see below), whose sum is σ = 363719116800. Its totient is φ = 30006789120.

The previous prime is 115897507573. The next prime is 115897507697. The reversal of 115897507656 is 656705798511.

It is a happy number.

115897507656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×115897507656² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115897507656.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715905 + ... + 862736.

It is an arithmetic number, because the mean of its divisors is an integer number (2841555600).

Almost surely, 2^115897507656 is an apocalyptic number.

It is an amenable number.

115897507656 is an abundant number, since it is smaller than the sum of its proper divisors (247821609144).

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

115897507656 is a wasteful number, since it uses less digits than its factorization.

115897507656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578699 (or 1578695 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 60.

The spelling of 115897507656 in words is "one hundred fifteen billion, eight hundred ninety-seven million, five hundred seven thousand, six hundred fifty-six".