6664466 has 4 divisors (see below), whose sum is σ = 9996702. Its totient is φ = 3332232.

The previous prime is 6664453. The next prime is 6664481. The reversal of 6664466 is 6644666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 13225 = 2579^2 + 115^2 .

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1666115 + ... + 1666118.

Almost surely, 2^6664466 is an apocalyptic number.

6664466 is a deficient number, since it is larger than the sum of its proper divisors (3332236).

6664466 is a wasteful number, since it uses less digits than its factorization.

6664466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332235.

The product of its digits is 124416, while the sum is 38.

The square root of 6664466 is about 2581.5627050296. The cubic root of 6664466 is about 188.1864944309.

The spelling of 6664466 in words is "six million, six hundred sixty-four thousand, four hundred sixty-six".