111166615115100 has 90 divisors (see below), whose sum is σ = 360358248554304. Its totient is φ = 29644430695200.

The previous prime is 111166615115099. The next prime is 111166615115131. The reversal of 111166615115100 is 1511516661111.

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×111166615115100² (a number of 29 digits) contains 22 as substring.

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 29 ways as a sum of consecutive naturals, for example, 6862128636 + ... + 6862144835.

Almost surely, 2^{111166615115100} is an apocalyptic number.

111166615115100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111166615115100 is an abundant number, since it is smaller than the sum of its proper divisors (249191633439204).

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

111166615115100 is a wasteful number, since it uses less digits than its factorization.

111166615115100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724273497 (or 13724273481 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 36.

The spelling of 111166615115100 in words is "one hundred eleven trillion, one hundred sixty-six billion, six hundred fifteen million, one hundred fifteen thousand, one hundred".