5656656655617 has 16 divisors (see below), whose sum is σ = 8229659747328. Its totient is φ = 3427528627280.

The previous prime is 5656656655603. The next prime is 5656656655619. The reversal of 5656656655617 is 7165566566565.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5656656655617 is a prime.

It is a super-2 number, since 2×5656656655617² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5656656655619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18549813 + ... + 18852290.

It is an arithmetic number, because the mean of its divisors is an integer number (514353734208).

Almost surely, 2^{5656656655617} is an apocalyptic number.

It is an amenable number.

5656656655617 is a deficient number, since it is larger than the sum of its proper divisors (2573003091711).

5656656655617 is a wasteful number, since it uses less digits than its factorization.

5656656655617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37406700.

The product of its digits is 1020600000, while the sum is 69.

The spelling of 5656656655617 in words is "five trillion, six hundred fifty-six billion, six hundred fifty-six million, six hundred fifty-five thousand, six hundred seventeen".