115661651600 has 60 divisors (see below), whose sum is σ = 303138685680. Its totient is φ = 42058780800.

The previous prime is 115661651597. The next prime is 115661651621. The reversal of 115661651600 is 6156166511.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13138970 + ... + 13147769.

It is an arithmetic number, because the mean of its divisors is an integer number (5052311428).

Almost surely, 2^115661651600 is an apocalyptic number.

115661651600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115661651600 is an abundant number, since it is smaller than the sum of its proper divisors (187477034080).

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

115661651600 is a wasteful number, since it uses less digits than its factorization.

115661651600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26286768 (or 26286757 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 115661651600 in words is "one hundred fifteen billion, six hundred sixty-one million, six hundred fifty-one thousand, six hundred".