111533057055 has 32 divisors (see below), whose sum is σ = 226606848000. Its totient is φ = 50986539936.

The previous prime is 111533057047. The next prime is 111533057057. The reversal of 111533057055 is 550750335111.

111533057055 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 3 + 30 + 570 + 55 = 666.

It is not a de Polignac number, because 111533057055 - 2³ = 111533057047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111533057057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59011255 + ... + 59013144.

It is an arithmetic number, because the mean of its divisors is an integer number (7081464000).

Almost surely, 2^111533057055 is an apocalyptic number.

111533057055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111533057055 is an abundant number, since it is smaller than the sum of its proper divisors (115073790945).

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

111533057055 is a wasteful number, since it uses less digits than its factorization.

111533057055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118024420 (or 118024414 counting only the distinct ones).

The product of its (nonzero) digits is 39375, while the sum is 36.

The spelling of 111533057055 in words is "one hundred eleven billion, five hundred thirty-three million, fifty-seven thousand, fifty-five".