501166116 has 144 divisors (see below), whose sum is σ = 1509231360. Its totient is φ = 143817120.

The previous prime is 501166111. The next prime is 501166163. The reversal of 501166116 is 611661105.

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 501166116.

It is not an unprimeable number, because it can be changed into a prime (501166111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201915 + ... + 204381.

Almost surely, 2^501166116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501166116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754615680).

501166116 is an abundant number, since it is smaller than the sum of its proper divisors (1008065244).

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

501166116 is a wasteful number, since it uses less digits than its factorization.

501166116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516 (or 2502 counting only the distinct ones).

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

The square root of 501166116 is about 22386.7397358347. The cubic root of 501166116 is about 794.3170781730.

The spelling of 501166116 in words is "five hundred one million, one hundred sixty-six thousand, one hundred sixteen".