111665146032 has 120 divisors (see below), whose sum is σ = 341332327440. Its totient is φ = 33796707840.

The previous prime is 111665145997. The next prime is 111665146049. The reversal of 111665146032 is 230641566111.

111665146032 is a `hidden beast` number, since 1 + 1 + 166 + 5 + 1 + 460 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1270618 + ... + 1355654.

It is an arithmetic number, because the mean of its divisors is an integer number (2844436062).

Almost surely, 2^111665146032 is an apocalyptic number.

111665146032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111665146032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170666163720).

111665146032 is an abundant number, since it is smaller than the sum of its proper divisors (229667181408).

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

111665146032 is a wasteful number, since it uses less digits than its factorization.

111665146032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85891 (or 85882 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 111665146032 in words is "one hundred eleven billion, six hundred sixty-five million, one hundred forty-six thousand, thirty-two".