656113005125 has 16 divisors (see below), whose sum is σ = 818852157552. Its totient is φ = 524875579200.

The previous prime is 656113005109. The next prime is 656113005137. The reversal of 656113005125 is 521500311656.

It can be written as a sum of positive squares in 8 ways, for example, as 516672002401 + 139441002724 = 718799^2 + 373418^2 .

It is not a de Polignac number, because 656113005125 - 2⁴ = 656113005109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7261727 + ... + 7351523.

It is an arithmetic number, because the mean of its divisors is an integer number (51178259847).

Almost surely, 2^656113005125 is an apocalyptic number.

It is an amenable number.

656113005125 is a deficient number, since it is larger than the sum of its proper divisors (162739152427).

656113005125 is an equidigital number, since it uses as much as digits as its factorization.

656113005125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148265 (or 148255 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 656113005125 in words is "six hundred fifty-six billion, one hundred thirteen million, five thousand, one hundred twenty-five".