5567557656 has 32 divisors (see below), whose sum is σ = 14154811200. Its totient is φ = 1824396960.

The previous prime is 5567557637. The next prime is 5567557687. The reversal of 5567557656 is 6567557655.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5567557596 and 5567557605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964530 + ... + 1967361.

It is an arithmetic number, because the mean of its divisors is an integer number (442337850).

Almost surely, 2^5567557656 is an apocalyptic number.

It is an amenable number.

5567557656 is an abundant number, since it is smaller than the sum of its proper divisors (8587253544).

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

5567557656 is a wasteful number, since it uses less digits than its factorization.

5567557656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3931959 (or 3931955 counting only the distinct ones).

The product of its digits is 33075000, while the sum is 57.

The square root of 5567557656 is about 74616.0683499204. The cubic root of 5567557656 is about 1772.3721114352.

Subtracting 5567557656 from its reverse (6567557655), we obtain a palindrome (999999999).

The spelling of 5567557656 in words is "five billion, five hundred sixty-seven million, five hundred fifty-seven thousand, six hundred fifty-six".