12565157045697 has 96 divisors (see below), whose sum is σ = 20050118210304. Its totient is φ = 7549985894400.

The previous prime is 12565157045689. The next prime is 12565157045699. The reversal of 12565157045697 is 79654075156521.

12565157045697 is a `hidden beast` number, since 1 + 2 + 5 + 6 + 5 + 1 + 570 + 4 + 56 + 9 + 7 = 666.

It is not a de Polignac number, because 12565157045697 - 2³ = 12565157045689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12565157045699) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 186318298 + ... + 186385724.

It is an arithmetic number, because the mean of its divisors is an integer number (208855398024).

Almost surely, 2^{12565157045697} is an apocalyptic number.

12565157045697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12565157045697 is a deficient number, since it is larger than the sum of its proper divisors (7484961164607).

12565157045697 is a wasteful number, since it uses less digits than its factorization.

12565157045697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68039 (or 68036 counting only the distinct ones).

The product of its (nonzero) digits is 79380000, while the sum is 63.

The spelling of 12565157045697 in words is "twelve trillion, five hundred sixty-five billion, one hundred fifty-seven million, forty-five thousand, six hundred ninety-seven".