667710568 has 16 divisors (see below), whose sum is σ = 1430808480. Its totient is φ = 286161648.

The previous prime is 667710557. The next prime is 667710583. The reversal of 667710568 is 865017766.

667710568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5961646 + ... + 5961757.

It is an arithmetic number, because the mean of its divisors is an integer number (89425530).

Almost surely, 2^667710568 is an apocalyptic number.

It is an amenable number.

667710568 is an abundant number, since it is smaller than the sum of its proper divisors (763097912).

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

667710568 is a wasteful number, since it uses less digits than its factorization.

667710568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11923416 (or 11923412 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 667710568 is about 25840.0961298521. The cubic root of 667710568 is about 874.0361928574.

The spelling of 667710568 in words is "six hundred sixty-seven million, seven hundred ten thousand, five hundred sixty-eight".