115805057520 has 40 divisors (see below), whose sum is σ = 358995679056. Its totient is φ = 30881348608.

The previous prime is 115805057483. The next prime is 115805057521. The reversal of 115805057520 is 25750508511.

It is a happy number.

115805057520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×115805057520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115805057521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241260297 + ... + 241260776.

Almost surely, 2^115805057520 is an apocalyptic number.

115805057520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115805057520 is an abundant number, since it is smaller than the sum of its proper divisors (243190621536).

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

115805057520 is a wasteful number, since it uses less digits than its factorization.

115805057520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482521089 (or 482521083 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 39.

The spelling of 115805057520 in words is "one hundred fifteen billion, eight hundred five million, fifty-seven thousand, five hundred twenty".