115812565580 has 48 divisors (see below), whose sum is σ = 255094068096. Its totient is φ = 44113985280.

The previous prime is 115812565579. The next prime is 115812565613. The reversal of 115812565580 is 85565218511.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 1630151 + ... + 1699710.

It is an arithmetic number, because the mean of its divisors is an integer number (5314459752).

Almost surely, 2^115812565580 is an apocalyptic number.

115812565580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115812565580 is an abundant number, since it is smaller than the sum of its proper divisors (139281502516).

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

115812565580 is a wasteful number, since it uses less digits than its factorization.

115812565580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329954 (or 3329952 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 47.

The spelling of 115812565580 in words is "one hundred fifteen billion, eight hundred twelve million, five hundred sixty-five thousand, five hundred eighty".