667604012 has 12 divisors (see below), whose sum is σ = 1208593680. Its totient is φ = 322291536.

The previous prime is 667604011. The next prime is 667604029. The reversal of 667604012 is 210406766.

667604012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×667604012² = 891390233676992288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 667604012.

It is not an unprimeable number, because it can be changed into a prime (667604011) 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, 2877488 + ... + 2877719.

It is an arithmetic number, because the mean of its divisors is an integer number (100716140).

Almost surely, 2^667604012 is an apocalyptic number.

It is an amenable number.

667604012 is a deficient number, since it is larger than the sum of its proper divisors (540989668).

667604012 is a wasteful number, since it uses less digits than its factorization.

667604012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755240 (or 5755238 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 667604012 is about 25838.0342131517. The cubic root of 667604012 is about 873.9896962865.

The spelling of 667604012 in words is "six hundred sixty-seven million, six hundred four thousand, twelve".