5610561656 has 16 divisors (see below), whose sum is σ = 12022632240. Its totient is φ = 2404526400.

The previous prime is 5610561643. The next prime is 5610561673. The reversal of 5610561656 is 6561650165.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50094245 + ... + 50094356.

It is an arithmetic number, because the mean of its divisors is an integer number (751414515).

Almost surely, 2^5610561656 is an apocalyptic number.

5610561656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5610561656 is an abundant number, since it is smaller than the sum of its proper divisors (6412070584).

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

5610561656 is a wasteful number, since it uses less digits than its factorization.

5610561656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100188614 (or 100188610 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 5610561656 is about 74903.6825262951. The cubic root of 5610561656 is about 1776.9236995918.

The spelling of 5610561656 in words is "five billion, six hundred ten million, five hundred sixty-one thousand, six hundred fifty-six".