668333312 has 18 divisors (see below), whose sum is σ = 1334056458. Its totient is φ = 334166528.

The previous prime is 668333299. The next prime is 668333363. The reversal of 668333312 is 213333866.

668333312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 561500416 + 106832896 = 23696^2 + 10336^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305083 + ... + 1305594.

Almost surely, 2^668333312 is an apocalyptic number.

It is an amenable number.

668333312 is a deficient number, since it is larger than the sum of its proper divisors (665723146).

668333312 is an equidigital number, since it uses as much as digits as its factorization.

668333312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610693 (or 2610679 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 668333312 is about 25852.1432767189. The cubic root of 668333312 is about 874.3078333423.

The spelling of 668333312 in words is "six hundred sixty-eight million, three hundred thirty-three thousand, three hundred twelve".