663117072 has 20 divisors (see below), whose sum is σ = 1713052560. Its totient is φ = 221039008.

The previous prime is 663117029. The next prime is 663117083. The reversal of 663117072 is 270711366.

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 3 ways as a sum of consecutive naturals, for example, 6907422 + ... + 6907517.

It is an arithmetic number, because the mean of its divisors is an integer number (85652628).

Almost surely, 2^663117072 is an apocalyptic number.

It is an amenable number.

663117072 is an abundant number, since it is smaller than the sum of its proper divisors (1049935488).

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

663117072 is a wasteful number, since it uses less digits than its factorization.

663117072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13814950 (or 13814944 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 663117072 is about 25751.0596286832. The cubic root of 663117072 is about 872.0272765925.

The spelling of 663117072 in words is "six hundred sixty-three million, one hundred seventeen thousand, seventy-two".