111100560505560 has 128 divisors (see below), whose sum is σ = 374001887217600. Its totient is φ = 29333481292800.

The previous prime is 111100560505541. The next prime is 111100560505579. The reversal of 111100560505560 is 65505065001111.

It is a happy number.

111100560505560 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 0 + 0 + 56 + 0 + 50 + 556 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (111100560505541) and next prime (111100560505579).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509152749 + ... + 509370908.

Almost surely, 2^{111100560505560} is an apocalyptic number.

111100560505560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100560505560 is an abundant number, since it is smaller than the sum of its proper divisors (262901326712040).

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

111100560505560 is a wasteful number, since it uses less digits than its factorization.

111100560505560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018523778 (or 1018523768 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 111100560505560 in words is "one hundred eleven trillion, one hundred billion, five hundred sixty million, five hundred five thousand, five hundred sixty".