725164635352635 has 64 divisors (see below), whose sum is σ = 1346171707929600. Its totient is φ = 369680901030144.

The previous prime is 725164635352613. The next prime is 725164635352643. The reversal of 725164635352635 is 536253536461527.

725164635352635 is a `hidden beast` number, since 7 + 2 + 5 + 1 + 6 + 4 + 63 + 535 + 2 + 6 + 35 = 666.

It is not a de Polignac number, because 725164635352635 - 2¹⁸ = 725164635090491 is a prime.

It is a super-2 number, since 2×725164635352635² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77039505 + ... + 85938434.

It is an arithmetic number, because the mean of its divisors is an integer number (21033932936400).

Almost surely, 2^{725164635352635} is an apocalyptic number.

725164635352635 is a deficient number, since it is larger than the sum of its proper divisors (621007072576965).

725164635352635 is a wasteful number, since it uses less digits than its factorization.

725164635352635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162979409 (or 162979403 counting only the distinct ones).

The product of its digits is 408240000, while the sum is 63.

The spelling of 725164635352635 in words is "seven hundred twenty-five trillion, one hundred sixty-four billion, six hundred thirty-five million, three hundred fifty-two thousand, six hundred thirty-five".