111637684040 has 16 divisors (see below), whose sum is σ = 251184789180. Its totient is φ = 44655073600.

The previous prime is 111637684033. The next prime is 111637684051. The reversal of 111637684040 is 40486736111.

It can be written as a sum of positive squares in 2 ways, for example, as 102066192484 + 9571491556 = 319478^2 + 97834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395471011 + ... + 1395471090.

Almost surely, 2^111637684040 is an apocalyptic number.

111637684040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111637684040 is an abundant number, since it is smaller than the sum of its proper divisors (139547105140).

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

111637684040 is a wasteful number, since it uses less digits than its factorization.

111637684040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790942112 (or 2790942108 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 111637684040 in words is "one hundred eleven billion, six hundred thirty-seven million, six hundred eighty-four thousand, forty".