115516932640 has 96 divisors (see below), whose sum is σ = 287431200000. Its totient is φ = 43750637568.

The previous prime is 115516932539. The next prime is 115516932653. The reversal of 115516932640 is 46239615511.

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, 6067456 + ... + 6086464.

It is an arithmetic number, because the mean of its divisors is an integer number (2994075000).

Almost surely, 2^115516932640 is an apocalyptic number.

115516932640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115516932640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143715600000).

115516932640 is an abundant number, since it is smaller than the sum of its proper divisors (171914267360).

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

115516932640 is a wasteful number, since it uses less digits than its factorization.

115516932640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21042 (or 21034 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 115516932640 in words is "one hundred fifteen billion, five hundred sixteen million, nine hundred thirty-two thousand, six hundred forty".