630916560 has 80 divisors (see below), whose sum is σ = 2173164480. Its totient is φ = 168243840.

The previous prime is 630916553. The next prime is 630916591. The reversal of 630916560 is 65619036.

630916560 is a `hidden beast` number, since 6 + 3 + 0 + 91 + 6 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143886 + ... + 148205.

It is an arithmetic number, because the mean of its divisors is an integer number (27164556).

Almost surely, 2^630916560 is an apocalyptic number.

630916560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630916560 is an abundant number, since it is smaller than the sum of its proper divisors (1542247920).

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

630916560 is a wasteful number, since it uses less digits than its factorization.

630916560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292113 (or 292101 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 630916560 is about 25118.0524722758. The cubic root of 630916560 is about 857.6774179781.

The spelling of 630916560 in words is "six hundred thirty million, nine hundred sixteen thousand, five hundred sixty".