663542704 has 60 divisors (see below), whose sum is σ = 1429361640. Its totient is φ = 298144000.

The previous prime is 663542701. The next prime is 663542713. The reversal of 663542704 is 407245366.

It is not an unprimeable number, because it can be changed into a prime (663542701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170379 + ... + 174229.

It is an arithmetic number, because the mean of its divisors is an integer number (23822694).

Almost surely, 2^663542704 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 663542704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714680820).

663542704 is an abundant number, since it is smaller than the sum of its proper divisors (765818936).

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

663542704 is a wasteful number, since it uses less digits than its factorization.

663542704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 663542704 is about 25759.3226619024. The cubic root of 663542704 is about 872.2138114422.

The spelling of 663542704 in words is "six hundred sixty-three million, five hundred forty-two thousand, seven hundred four".