111564922923 has 24 divisors (see below), whose sum is σ = 165131778240. Its totient is φ = 72557812080.

The previous prime is 111564922867. The next prime is 111564922933. The reversal of 111564922923 is 329229465111.

It is a happy number.

111564922923 is a `hidden beast` number, since 1 + 1 + 156 + 492 + 2 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 111564922923 - 2¹⁰ = 111564921899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111564922933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 732361 + ... + 871482.

It is an arithmetic number, because the mean of its divisors is an integer number (6880490760).

Almost surely, 2^111564922923 is an apocalyptic number.

111564922923 is a deficient number, since it is larger than the sum of its proper divisors (53566855317).

111564922923 is a wasteful number, since it uses less digits than its factorization.

111564922923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604039 (or 1604036 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 111564922923 in words is "one hundred eleven billion, five hundred sixty-four million, nine hundred twenty-two thousand, nine hundred twenty-three".