6664004666 has 8 divisors (see below), whose sum is σ = 10904734944. Its totient is φ = 3029093020.

The previous prime is 6664004647. The next prime is 6664004689.

6664004666 is nontrivially palindromic in base 10.

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, 151454630 + ... + 151454673.

It is an arithmetic number, because the mean of its divisors is an integer number (1363091868).

Almost surely, 2^6664004666 is an apocalyptic number.

6664004666 is a deficient number, since it is larger than the sum of its proper divisors (4240730278).

6664004666 is a wasteful number, since it uses less digits than its factorization.

6664004666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302909316.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 6664004666 is about 81633.3551068434. The cubic root of 6664004666 is about 1881.8215205590.

The spelling of 6664004666 in words is "six billion, six hundred sixty-four million, four thousand, six hundred sixty-six".