561756116 has 24 divisors (see below), whose sum is σ = 1005903360. Its totient is φ = 274400672.

The previous prime is 561756049. The next prime is 561756121. The reversal of 561756116 is 611657165.

It is a self number, because there is not a number n which added to its sum of digits gives 561756116.

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, 45125 + ... + 56211.

It is an arithmetic number, because the mean of its divisors is an integer number (41912640).

Almost surely, 2^561756116 is an apocalyptic number.

It is an amenable number.

561756116 is a deficient number, since it is larger than the sum of its proper divisors (444147244).

561756116 is a wasteful number, since it uses less digits than its factorization.

561756116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383 (or 11381 counting only the distinct ones).

The product of its digits is 37800, while the sum is 38.

The square root of 561756116 is about 23701.3948112764. The cubic root of 561756116 is about 825.1177626813.

The spelling of 561756116 in words is "five hundred sixty-one million, seven hundred fifty-six thousand, one hundred sixteen".