111664901918118 has 16 divisors (see below), whose sum is σ = 223332891885936. Its totient is φ = 37221119297760.

The previous prime is 111664901918111. The next prime is 111664901918203. The reversal of 111664901918118 is 811819109466111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111664901918111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128198521 + ... + 129066612.

It is an arithmetic number, because the mean of its divisors is an integer number (13958305742871).

Almost surely, 2^{111664901918118} is an apocalyptic number.

111664901918118 is an abundant number, since it is smaller than the sum of its proper divisors (111667989967818).

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

111664901918118 is a wasteful number, since it uses less digits than its factorization.

111664901918118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257337479.

The product of its (nonzero) digits is 746496, while the sum is 57.

The spelling of 111664901918118 in words is "one hundred eleven trillion, six hundred sixty-four billion, nine hundred one million, nine hundred eighteen thousand, one hundred eighteen".