663672352 has 24 divisors (see below), whose sum is σ = 1493263296. Its totient is φ = 284430912.

The previous prime is 663672349. The next prime is 663672353. The reversal of 663672352 is 253276366.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (663672353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481188 + ... + 1481635.

It is an arithmetic number, because the mean of its divisors is an integer number (62219304).

Almost surely, 2^663672352 is an apocalyptic number.

It is an amenable number.

663672352 is an abundant number, since it is smaller than the sum of its proper divisors (829590944).

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

663672352 is a wasteful number, since it uses less digits than its factorization.

663672352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962840 (or 2962832 counting only the distinct ones).

The product of its digits is 272160, while the sum is 40.

The square root of 663672352 is about 25761.8390647873. The cubic root of 663672352 is about 872.2706143234.

The spelling of 663672352 in words is "six hundred sixty-three million, six hundred seventy-two thousand, three hundred fifty-two".