667966674 has 8 divisors (see below), whose sum is σ = 1335933360. Its totient is φ = 222655556.

The previous prime is 667966643. The next prime is 667966693. The reversal of 667966674 is 476669766.

667966674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

667966674 is an admirable number.

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, 55663884 + ... + 55663895.

It is an arithmetic number, because the mean of its divisors is an integer number (166991670).

Almost surely, 2^667966674 is an apocalyptic number.

667966674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

667966674 is a wasteful number, since it uses less digits than its factorization.

667966674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111327784.

The product of its digits is 13716864, while the sum is 57.

The square root of 667966674 is about 25845.0512477728. The cubic root of 667966674 is about 874.1479265489.

The spelling of 667966674 in words is "six hundred sixty-seven million, nine hundred sixty-six thousand, six hundred seventy-four".