111542957568 has 120 divisors (see below), whose sum is σ = 367909281168. Its totient is φ = 31869407232.

The previous prime is 111542957521. The next prime is 111542957569. The reversal of 111542957568 is 865759245111.

111542957568 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 4 + 2 + 9 + 575 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111542957569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696771 + ... + 1761282.

Almost surely, 2^111542957568 is an apocalyptic number.

111542957568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

111542957568 is an abundant number, since it is smaller than the sum of its proper divisors (256366323600).

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

111542957568 is an equidigital number, since it uses as much as digits as its factorization.

111542957568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458084 (or 3458065 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 54.

The spelling of 111542957568 in words is "one hundred eleven billion, five hundred forty-two million, nine hundred fifty-seven thousand, five hundred sixty-eight".