656660000610 has 48 divisors (see below), whose sum is σ = 1708559816184. Its totient is φ = 174981762816.

The previous prime is 656660000461. The next prime is 656660000651. The reversal of 656660000610 is 16000066656.

It can be written as a sum of positive squares in 4 ways, for example, as 655861881609 + 798119001 = 809853^2 + 28251^2 .

It is a super-2 number, since 2×656660000610² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2533467 + ... + 2780606.

Almost surely, 2^656660000610 is an apocalyptic number.

656660000610 is an abundant number, since it is smaller than the sum of its proper divisors (1051899815574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656660000610 is a wasteful number, since it uses less digits than its factorization.

656660000610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315459 (or 5315456 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 656660000610 in words is "six hundred fifty-six billion, six hundred sixty million, six hundred ten", and thus it is an aban number.