115721500615600 has 120 divisors (see below), whose sum is σ = 303301739165040. Its totient is φ = 42079684608000.

The previous prime is 115721500615597. The next prime is 115721500615661. The reversal of 115721500615600 is 6516005127511.

It is a super-2 number, since 2×115721500615600² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238946496 + ... + 239430304.

It is an arithmetic number, because the mean of its divisors is an integer number (2527514493042).

Almost surely, 2^{115721500615600} is an apocalyptic number.

115721500615600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115721500615600 is an abundant number, since it is smaller than the sum of its proper divisors (187580238549440).

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

115721500615600 is a wasteful number, since it uses less digits than its factorization.

115721500615600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538199 (or 538188 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 40.

The spelling of 115721500615600 in words is "one hundred fifteen trillion, seven hundred twenty-one billion, five hundred million, six hundred fifteen thousand, six hundred".