665110116 has 60 divisors (see below), whose sum is σ = 1896805680. Its totient is φ = 201547440.

The previous prime is 665110109. The next prime is 665110141. The reversal of 665110116 is 611011566.

665110116 is a `hidden beast` number, since 6 + 651 + 1 + 0 + 1 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 665110116.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89746 + ... + 96873.

It is an arithmetic number, because the mean of its divisors is an integer number (31613428).

Almost surely, 2^665110116 is an apocalyptic number.

665110116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

665110116 is an abundant number, since it is smaller than the sum of its proper divisors (1231695564).

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

665110116 is a wasteful number, since it uses less digits than its factorization.

665110116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186646 (or 186635 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 665110116 is about 25789.7288857405. The cubic root of 665110116 is about 872.9000487829.

The spelling of 665110116 in words is "six hundred sixty-five million, one hundred ten thousand, one hundred sixteen".