561568116 has 24 divisors (see below), whose sum is σ = 1310775424. Its totient is φ = 187125120.

The previous prime is 561568087. The next prime is 561568153. The reversal of 561568116 is 611865165.

561568116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39756 + ... + 51996.

Almost surely, 2^561568116 is an apocalyptic number.

It is an amenable number.

561568116 is an abundant number, since it is smaller than the sum of its proper divisors (749207308).

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

561568116 is a wasteful number, since it uses less digits than its factorization.

561568116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071 (or 16069 counting only the distinct ones).

The product of its digits is 43200, while the sum is 39.

The square root of 561568116 is about 23697.4284680849. The cubic root of 561568116 is about 825.0257064534.

The spelling of 561568116 in words is "five hundred sixty-one million, five hundred sixty-eight thousand, one hundred sixteen".