111565000015664 has 20 divisors (see below), whose sum is σ = 232784663494656. Its totient is φ = 51491538468672.

The previous prime is 111565000015661. The next prime is 111565000015709. The reversal of 111565000015664 is 466510000565111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111565000015661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268185095984 + ... + 268185096399.

Almost surely, 2^{111565000015664} is an apocalyptic number.

It is an amenable number.

111565000015664 is an abundant number, since it is smaller than the sum of its proper divisors (121219663478992).

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

111565000015664 is a wasteful number, since it uses less digits than its factorization.

111565000015664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536370192404 (or 536370192398 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 111565000015664 in words is "one hundred eleven trillion, five hundred sixty-five billion, fifteen thousand, six hundred sixty-four".