5656643696 has 20 divisors (see below), whose sum is σ = 11956088184. Its totient is φ = 2571201600.

The previous prime is 5656643693. The next prime is 5656643737. The reversal of 5656643696 is 6963466565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656643693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16069835 + ... + 16070186.

Almost surely, 2^5656643696 is an apocalyptic number.

It is an amenable number.

5656643696 is an abundant number, since it is smaller than the sum of its proper divisors (6299444488).

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

5656643696 is a wasteful number, since it uses less digits than its factorization.

5656643696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32140040 (or 32140034 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 56.

The square root of 5656643696 is about 75210.6621164845. The cubic root of 5656643696 is about 1781.7753292750.

The spelling of 5656643696 in words is "five billion, six hundred fifty-six million, six hundred forty-three thousand, six hundred ninety-six".