655940910625 has 160 divisors (see below), whose sum is σ = 1116103532544. Its totient is φ = 372103200000.

The previous prime is 655940910607. The next prime is 655940910631. The reversal of 655940910625 is 526019049556.

It is not a de Polignac number, because 655940910625 - 2³³ = 647350976033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 44411992 + ... + 44426758.

Almost surely, 2^655940910625 is an apocalyptic number.

655940910625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

655940910625 is a deficient number, since it is larger than the sum of its proper divisors (460162621919).

655940910625 is a wasteful number, since it uses less digits than its factorization.

655940910625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14889 (or 14874 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 655940910625 in words is "six hundred fifty-five billion, nine hundred forty million, nine hundred ten thousand, six hundred twenty-five".