111291643552320 has 672 divisors, whose sum is σ = 498231441797760. Its totient is φ = 23125535354880.

The previous prime is 111291643552301. The next prime is 111291643552363. The reversal of 111291643552320 is 23255346192111.

111291643552320 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 9 + 1 + 64 + 3 + 552 + 32 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 7291999 + ... + 16605918.

Almost surely, 2^{111291643552320} is an apocalyptic number.

111291643552320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111291643552320 is an abundant number, since it is smaller than the sum of its proper divisors (386939798245440).

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

111291643552320 is a wasteful number, since it uses less digits than its factorization.

111291643552320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23897968 (or 23897945 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 111291643552320 in words is "one hundred eleven trillion, two hundred ninety-one billion, six hundred forty-three million, five hundred fifty-two thousand, three hundred twenty".