111691960836 has 48 divisors (see below), whose sum is σ = 261320371200. Its totient is φ = 37129936032.

The previous prime is 111691960829. The next prime is 111691960841. The reversal of 111691960836 is 638069196111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9524985 + ... + 9536703.

It is an arithmetic number, because the mean of its divisors is an integer number (5444174400).

Almost surely, 2^111691960836 is an apocalyptic number.

It is an amenable number.

111691960836 is an abundant number, since it is smaller than the sum of its proper divisors (149628410364).

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

111691960836 is a wasteful number, since it uses less digits than its factorization.

111691960836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13808 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 111691960836 in words is "one hundred eleven billion, six hundred ninety-one million, nine hundred sixty thousand, eight hundred thirty-six".