111861924168 has 32 divisors (see below), whose sum is σ = 279789320160. Its totient is φ = 37269373440.

The previous prime is 111861924149. The next prime is 111861924191. The reversal of 111861924168 is 861429168111.

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, 1069930 + ... + 1169817.

It is an arithmetic number, because the mean of its divisors is an integer number (8743416255).

Almost surely, 2^111861924168 is an apocalyptic number.

It is an amenable number.

111861924168 is an abundant number, since it is smaller than the sum of its proper divisors (167927395992).

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

111861924168 is a wasteful number, since it uses less digits than its factorization.

111861924168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241837 (or 2241833 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The spelling of 111861924168 in words is "one hundred eleven billion, eight hundred sixty-one million, nine hundred twenty-four thousand, one hundred sixty-eight".