6670672666 has 8 divisors (see below), whose sum is σ = 11435438880. Its totient is φ = 2858859708.

The previous prime is 6670672663. The next prime is 6670672747. The reversal of 6670672666 is 6662760766.

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

It is not an unprimeable number, because it can be changed into a prime (6670672663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238238296 + ... + 238238323.

It is an arithmetic number, because the mean of its divisors is an integer number (1429429860).

Almost surely, 2^6670672666 is an apocalyptic number.

6670672666 is a deficient number, since it is larger than the sum of its proper divisors (4764766214).

6670672666 is a wasteful number, since it uses less digits than its factorization.

6670672666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476476628.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The square root of 6670672666 is about 81674.1860443066. The cubic root of 6670672666 is about 1882.4489612488.

The spelling of 6670672666 in words is "six billion, six hundred seventy million, six hundred seventy-two thousand, six hundred sixty-six".