669603532 has 24 divisors (see below), whose sum is σ = 1263470096. Its totient is φ = 308674368.

The previous prime is 669603521. The next prime is 669603551. The reversal of 669603532 is 235306966.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38263 + ... + 52945.

Almost surely, 2^669603532 is an apocalyptic number.

It is an amenable number.

669603532 is a deficient number, since it is larger than the sum of its proper divisors (593866564).

669603532 is a wasteful number, since it uses less digits than its factorization.

669603532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15577 (or 15575 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 40.

The square root of 669603532 is about 25876.6986302349. The cubic root of 669603532 is about 874.8613797276.

The spelling of 669603532 in words is "six hundred sixty-nine million, six hundred three thousand, five hundred thirty-two".