668383332 has 12 divisors (see below), whose sum is σ = 1559561136. Its totient is φ = 222794440.

The previous prime is 668383321. The next prime is 668383351. The reversal of 668383332 is 233383866.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27849294 + ... + 27849317.

It is an arithmetic number, because the mean of its divisors is an integer number (129963428).

Almost surely, 2^668383332 is an apocalyptic number.

It is an amenable number.

668383332 is an abundant number, since it is smaller than the sum of its proper divisors (891177804).

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

668383332 is a wasteful number, since it uses less digits than its factorization.

668383332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55698618 (or 55698616 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 668383332 is about 25853.1106832427. The cubic root of 668383332 is about 874.3296447080.

The spelling of 668383332 in words is "six hundred sixty-eight million, three hundred eighty-three thousand, three hundred thirty-two".