115566715605 has 32 divisors (see below), whose sum is σ = 201785200128. Its totient is φ = 56013249600.

The previous prime is 115566715601. The next prime is 115566715619. The reversal of 115566715605 is 506517665511.

It is not a de Polignac number, because 115566715605 - 2² = 115566715601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115566715601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372342 + ... + 608088.

It is an arithmetic number, because the mean of its divisors is an integer number (6305787504).

Almost surely, 2^115566715605 is an apocalyptic number.

115566715605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115566715605 is a deficient number, since it is larger than the sum of its proper divisors (86218484523).

115566715605 is a wasteful number, since it uses less digits than its factorization.

115566715605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238737.

The product of its (nonzero) digits is 945000, while the sum is 48.

The spelling of 115566715605 in words is "one hundred fifteen billion, five hundred sixty-six million, seven hundred fifteen thousand, six hundred five".