630165880 has 64 divisors (see below), whose sum is σ = 1441722240. Its totient is φ = 247857792.

The previous prime is 630165869. The next prime is 630165883. The reversal of 630165880 is 88561036.

630165880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630165883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1151767 + ... + 1152313.

It is an arithmetic number, because the mean of its divisors is an integer number (22526910).

Almost surely, 2^630165880 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 630165880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720861120).

630165880 is an abundant number, since it is smaller than the sum of its proper divisors (811556360).

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

630165880 is a wasteful number, since it uses less digits than its factorization.

630165880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 630165880 is about 25103.1049872322. The cubic root of 630165880 is about 857.3371211007.

The spelling of 630165880 in words is "six hundred thirty million, one hundred sixty-five thousand, eight hundred eighty".