666767674 has 8 divisors (see below), whose sum is σ = 1014238368. Its totient is φ = 328688220.

The previous prime is 666767669. The next prime is 666767683. The reversal of 666767674 is 476767666.

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

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, 2347632 + ... + 2347915.

It is an arithmetic number, because the mean of its divisors is an integer number (126779796).

Almost surely, 2^666767674 is an apocalyptic number.

666767674 is a deficient number, since it is larger than the sum of its proper divisors (347470694).

666767674 is a wasteful number, since it uses less digits than its factorization.

666767674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695620.

The product of its digits is 10668672, while the sum is 55.

The square root of 666767674 is about 25821.8448992321. The cubic root of 666767674 is about 873.6245815249.

The spelling of 666767674 in words is "six hundred sixty-six million, seven hundred sixty-seven thousand, six hundred seventy-four".