115657205500 has 48 divisors (see below), whose sum is σ = 261305553600. Its totient is φ = 44667604800.

The previous prime is 115657205483. The next prime is 115657205567. The reversal of 115657205500 is 5502756511.

It is a self number, because there is not a number n which added to its sum of digits gives 115657205500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3973680 + ... + 4002679.

It is an arithmetic number, because the mean of its divisors is an integer number (5443865700).

Almost surely, 2^115657205500 is an apocalyptic number.

115657205500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115657205500 is an abundant number, since it is smaller than the sum of its proper divisors (145648348100).

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

115657205500 is a wasteful number, since it uses less digits than its factorization.

115657205500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976407 (or 7976395 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 115657205500 in words is "one hundred fifteen billion, six hundred fifty-seven million, two hundred five thousand, five hundred".