561108561116 has 24 divisors (see below), whose sum is σ = 1040099991840. Its totient is φ = 263949796352.

The previous prime is 561108561113. The next prime is 561108561137. The reversal of 561108561116 is 611165801165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561108561113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403960 + ... + 1758783.

It is an arithmetic number, because the mean of its divisors is an integer number (43337499660).

Almost surely, 2^561108561116 is an apocalyptic number.

It is an amenable number.

561108561116 is a deficient number, since it is larger than the sum of its proper divisors (478991430724).

561108561116 is a wasteful number, since it uses less digits than its factorization.

561108561116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165373 (or 3165371 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 41.

The spelling of 561108561116 in words is "five hundred sixty-one billion, one hundred eight million, five hundred sixty-one thousand, one hundred sixteen".