115152221556 has 36 divisors (see below), whose sum is σ = 291148603200. Its totient is φ = 38374925328.

The previous prime is 115152221467. The next prime is 115152221593. The reversal of 115152221556 is 655122251511.

115152221556 is a `hidden beast` number, since 1 + 1 + 51 + 52 + 2 + 2 + 1 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×115152221556² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 115152221556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227196 + ... + 530963.

It is an arithmetic number, because the mean of its divisors is an integer number (8087461200).

Almost surely, 2^115152221556 is an apocalyptic number.

It is an amenable number.

115152221556 is an abundant number, since it is smaller than the sum of its proper divisors (175996381644).

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

115152221556 is a wasteful number, since it uses less digits than its factorization.

115152221556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762388 (or 762383 counting only the distinct ones).

The product of its digits is 30000, while the sum is 36.

The spelling of 115152221556 in words is "one hundred fifteen billion, one hundred fifty-two million, two hundred twenty-one thousand, five hundred fifty-six".