656694968 has 16 divisors (see below), whose sum is σ = 1259938680. Its totient is φ = 320711328.

The previous prime is 656694959. The next prime is 656694977. The reversal of 656694968 is 869496656.

656694968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (656694959) and next prime (656694977).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954155 + ... + 954842.

Almost surely, 2^656694968 is an apocalyptic number.

It is an amenable number.

656694968 is a deficient number, since it is larger than the sum of its proper divisors (603243712).

656694968 is a wasteful number, since it uses less digits than its factorization.

656694968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909046 (or 1909042 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 59.

The square root of 656694968 is about 25626.0603292820. The cubic root of 656694968 is about 869.2030258150.

The spelling of 656694968 in words is "six hundred fifty-six million, six hundred ninety-four thousand, nine hundred sixty-eight".