6668738572 has 12 divisors (see below), whose sum is σ = 11677433040. Its totient is φ = 3332329136.

The previous prime is 6668738567. The next prime is 6668738599. The reversal of 6668738572 is 2758378666.

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, 502672 + ... + 515767.

It is an arithmetic number, because the mean of its divisors is an integer number (973119420).

Almost surely, 2^6668738572 is an apocalyptic number.

It is an amenable number.

6668738572 is a deficient number, since it is larger than the sum of its proper divisors (5008694468).

6668738572 is a wasteful number, since it uses less digits than its factorization.

6668738572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020080 (or 1020078 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 58.

The square root of 6668738572 is about 81662.3448842856. The cubic root of 6668738572 is about 1882.2670113239.

The spelling of 6668738572 in words is "six billion, six hundred sixty-eight million, seven hundred thirty-eight thousand, five hundred seventy-two".