111654079992 has 160 divisors (see below), whose sum is σ = 384904581600. Its totient is φ = 29447214336.

The previous prime is 111654079967. The next prime is 111654079993. The reversal of 111654079992 is 299970456111.

It is a happy number.

111654079992 is a `hidden beast` number, since 1 + 1 + 1 + 6 + 540 + 7 + 9 + 9 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111654079993) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 887767 + ... + 1005702.

It is an arithmetic number, because the mean of its divisors is an integer number (2405653635).

Almost surely, 2^111654079992 is an apocalyptic number.

111654079992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111654079992 is an abundant number, since it is smaller than the sum of its proper divisors (273250501608).

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

111654079992 is a wasteful number, since it uses less digits than its factorization.

111654079992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893507 (or 1893494 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 111654079992 in words is "one hundred eleven billion, six hundred fifty-four million, seventy-nine thousand, nine hundred ninety-two".