5665565116656 has 60 divisors (see below), whose sum is σ = 15856122692800. Its totient is φ = 1888472966400.

The previous prime is 5665565116649. The next prime is 5665565116693. The reversal of 5665565116656 is 6566115655665.

5665565116656 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 5 + 6 + 511 + 66 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5665565116593 and 5665565116602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5323020 + ... + 6298068.

Almost surely, 2^{5665565116656} is an apocalyptic number.

It is an amenable number.

5665565116656 is an abundant number, since it is smaller than the sum of its proper divisors (10190557576144).

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

5665565116656 is a wasteful number, since it uses less digits than its factorization.

5665565116656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015414 (or 1015405 counting only the distinct ones).

The product of its digits is 145800000, while the sum is 63.

The spelling of 5665565116656 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, one hundred sixteen thousand, six hundred fifty-six".