63568320 has 112 divisors (see below), whose sum is σ = 210677760. Its totient is φ = 16208896.

The previous prime is 63568313. The next prime is 63568333. The reversal of 63568320 is 2386536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20641 + ... + 23519.

Almost surely, 2^63568320 is an apocalyptic number.

63568320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63568320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105338880).

63568320 is an abundant number, since it is smaller than the sum of its proper divisors (147109440).

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

63568320 is a wasteful number, since it uses less digits than its factorization.

63568320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 63568320 is about 7972.9743508931. The cubic root of 63568320 is about 399.0986370544.

The spelling of 63568320 in words is "sixty-three million, five hundred sixty-eight thousand, three hundred twenty".