663313056 has 192 divisors, whose sum is σ = 2085108480. Its totient is φ = 180633600.

The previous prime is 663313039. The next prime is 663313061. The reversal of 663313056 is 650313366.

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 31 ways as a sum of consecutive naturals, for example, 1968120 + ... + 1968456.

It is an arithmetic number, because the mean of its divisors is an integer number (10859940).

Almost surely, 2^663313056 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 663313056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1042554240).

663313056 is an abundant number, since it is smaller than the sum of its proper divisors (1421795424).

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

663313056 is a wasteful number, since it uses less digits than its factorization.

663313056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 663313056 is about 25754.8647055270. The cubic root of 663313056 is about 872.1131772411.

The spelling of 663313056 in words is "six hundred sixty-three million, three hundred thirteen thousand, fifty-six".