115656215400 has 144 divisors (see below), whose sum is σ = 423722388960. Its totient is φ = 28037865600.

The previous prime is 115656215357. The next prime is 115656215453. The reversal of 115656215400 is 4512656511.

115656215400 is a `hidden beast` number, since 1 + 1 + 56 + 5 + 62 + 1 + 540 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2900812 + ... + 2940411.

It is an arithmetic number, because the mean of its divisors is an integer number (2942516590).

Almost surely, 2^115656215400 is an apocalyptic number.

115656215400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115656215400 is an abundant number, since it is smaller than the sum of its proper divisors (308066173560).

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

115656215400 is a wasteful number, since it uses less digits than its factorization.

115656215400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841256 (or 5841244 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 115656215400 in words is "one hundred fifteen billion, six hundred fifty-six million, two hundred fifteen thousand, four hundred".