111005611056 has 80 divisors (see below), whose sum is σ = 321782068320. Its totient is φ = 36635500800.

The previous prime is 111005611051. The next prime is 111005611099. The reversal of 111005611056 is 650116500111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (111005611051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228435 + ... + 1315698.

It is an arithmetic number, because the mean of its divisors is an integer number (4022275854).

Almost surely, 2^111005611056 is an apocalyptic number.

111005611056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111005611056 is an abundant number, since it is smaller than the sum of its proper divisors (210776457264).

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

111005611056 is a wasteful number, since it uses less digits than its factorization.

111005611056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544251 (or 2544239 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 111005611056 in words is "one hundred eleven billion, five million, six hundred eleven thousand, fifty-six".