111660560055 has 96 divisors (see below), whose sum is σ = 212454627840. Its totient is φ = 53802512640.

The previous prime is 111660559991. The next prime is 111660560087. The reversal of 111660560055 is 550065066111.

It is not a de Polignac number, because 111660560055 - 2⁶ = 111660559991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68968036 + ... + 68969654.

It is an arithmetic number, because the mean of its divisors is an integer number (2213069040).

Almost surely, 2^111660560055 is an apocalyptic number.

111660560055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111660560055 is a deficient number, since it is larger than the sum of its proper divisors (100794067785).

111660560055 is a wasteful number, since it uses less digits than its factorization.

111660560055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 111660560055 in words is "one hundred eleven billion, six hundred sixty million, five hundred sixty thousand, fifty-five".