111660560056 has 8 divisors (see below), whose sum is σ = 209363550120. Its totient is φ = 55830280024.

The previous prime is 111660559991. The next prime is 111660560087. The reversal of 111660560056 is 650065066111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 111660559997 and 111660560024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978784996 + ... + 6978785011.

It is an arithmetic number, because the mean of its divisors is an integer number (26170443765).

Almost surely, 2^111660560056 is an apocalyptic number.

It is an amenable number.

111660560056 is a deficient number, since it is larger than the sum of its proper divisors (97702990064).

111660560056 is a wasteful number, since it uses less digits than its factorization.

111660560056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957570013 (or 13957570009 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 111660560056 in words is "one hundred eleven billion, six hundred sixty million, five hundred sixty thousand, fifty-six".