5656643506757 has 32 divisors (see below), whose sum is σ = 6100290662400. Its totient is φ = 5228761232448.

The previous prime is 5656643506739. The next prime is 5656643506771. The reversal of 5656643506757 is 7576053466565.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5656643506757 - 2²⁸ = 5656375071301 is a prime.

It is a super-2 number, since 2×5656643506757² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5656643506693 and 5656643506702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656643806757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210059828 + ... + 210086754.

It is an arithmetic number, because the mean of its divisors is an integer number (190634083200).

Almost surely, 2^{5656643506757} is an apocalyptic number.

It is an amenable number.

5656643506757 is a deficient number, since it is larger than the sum of its proper divisors (443647155643).

5656643506757 is a wasteful number, since it uses less digits than its factorization.

5656643506757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28145.

The product of its (nonzero) digits is 476280000, while the sum is 65.

The spelling of 5656643506757 in words is "five trillion, six hundred fifty-six billion, six hundred forty-three million, five hundred six thousand, seven hundred fifty-seven".