663371324 has 48 divisors (see below), whose sum is σ = 1460954880. Its totient is φ = 256028160.

The previous prime is 663371323. The next prime is 663371327. The reversal of 663371324 is 423173366.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663371321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22892 + ... + 43020.

It is an arithmetic number, because the mean of its divisors is an integer number (30436560).

Almost surely, 2^663371324 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 663371324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730477440).

663371324 is an abundant number, since it is smaller than the sum of its proper divisors (797583556).

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

663371324 is a wasteful number, since it uses less digits than its factorization.

663371324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20258 (or 20256 counting only the distinct ones).

The product of its digits is 54432, while the sum is 35.

The square root of 663371324 is about 25755.9958844538. The cubic root of 663371324 is about 872.1387130985.

The spelling of 663371324 in words is "six hundred sixty-three million, three hundred seventy-one thousand, three hundred twenty-four".