656055693 has 20 divisors (see below), whose sum is σ = 1031616960. Its totient is φ = 414349992.

The previous prime is 656055689. The next prime is 656055707. The reversal of 656055693 is 396550656.

656055693 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 556 + 93 = 666.

It is not a de Polignac number, because 656055693 - 2² = 656055689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656055613) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 211605 + ... + 214682.

It is an arithmetic number, because the mean of its divisors is an integer number (51580848).

Almost surely, 2^656055693 is an apocalyptic number.

It is an amenable number.

656055693 is a deficient number, since it is larger than the sum of its proper divisors (375561267).

656055693 is a wasteful number, since it uses less digits than its factorization.

656055693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426318 (or 426309 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The square root of 656055693 is about 25613.5841498218. The cubic root of 656055693 is about 868.9208856050.

The spelling of 656055693 in words is "six hundred fifty-six million, fifty-five thousand, six hundred ninety-three".