115512400202556 has 24 divisors (see below), whose sum is σ = 308033067207040. Its totient is φ = 33003542914992.

The previous prime is 115512400202509. The next prime is 115512400202567. The reversal of 115512400202556 is 655202004215511.

It is a happy number.

It is a super-2 number, since 2×115512400202556² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687573810646 + ... + 687573810813.

Almost surely, 2^{115512400202556} is an apocalyptic number.

It is an amenable number.

115512400202556 is an abundant number, since it is smaller than the sum of its proper divisors (192520667004484).

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

115512400202556 is a wasteful number, since it uses less digits than its factorization.

115512400202556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375147621473 (or 1375147621471 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 115512400202556 in words is "one hundred fifteen trillion, five hundred twelve billion, four hundred million, two hundred two thousand, five hundred fifty-six".