111331957548816 has 45 divisors (see below), whose sum is σ = 311575207769319. Its totient is φ = 37110610310688.

The previous prime is 111331957548809. The next prime is 111331957548859. The reversal of 111331957548816 is 618845759133111.

It is a happy number.

The square root of 111331957548816 is 10551396.

It is a perfect power (a square), and thus also a powerful number.

111331957548816 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 3 + 1 + 9 + 5 + 7 + 548 + 81 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 126177111 + ... + 127056393.

Almost surely, 2^{111331957548816} is an apocalyptic number.

111331957548816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

111331957548816 is the 10551396-th square number.

It is an amenable number.

111331957548816 is an abundant number, since it is smaller than the sum of its proper divisors (200243250220503).

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

111331957548816 is an frugal number, since it uses more digits than its factorization.

111331957548816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758580 (or 879288 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 63.

The spelling of 111331957548816 in words is "one hundred eleven trillion, three hundred thirty-one billion, nine hundred fifty-seven million, five hundred forty-eight thousand, eight hundred sixteen".