111665650056 has 32 divisors (see below), whose sum is σ = 279179181600. Its totient is φ = 37219875840.

The previous prime is 111665649989. The next prime is 111665650073. The reversal of 111665650056 is 650056566111.

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, 368475 + ... + 599253.

It is an arithmetic number, because the mean of its divisors is an integer number (8724349425).

Almost surely, 2^111665650056 is an apocalyptic number.

It is an amenable number.

111665650056 is an abundant number, since it is smaller than the sum of its proper divisors (167513531544).

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

111665650056 is a wasteful number, since it uses less digits than its factorization.

111665650056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250949 (or 250945 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 111665650056 in words is "one hundred eleven billion, six hundred sixty-five million, six hundred fifty thousand, fifty-six".