6666674668 has 12 divisors (see below), whose sum is σ = 11677684032. Its totient is φ = 3330193520.

The previous prime is 6666674659. The next prime is 6666674671. The reversal of 6666674668 is 8664766666.

It is a super-2 number, since 2×6666674668² = 88889102257905820448, which contains 22 as substring.

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, 781180 + ... + 789667.

It is an arithmetic number, because the mean of its divisors is an integer number (973140336).

Almost surely, 2^6666674668 is an apocalyptic number.

It is an amenable number.

6666674668 is a deficient number, since it is larger than the sum of its proper divisors (5011009364).

6666674668 is a wasteful number, since it uses less digits than its factorization.

6666674668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571912 (or 1571910 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 61.

The square root of 6666674668 is about 81649.7070907177. The cubic root of 6666674668 is about 1882.0728107161.

The spelling of 6666674668 in words is "six billion, six hundred sixty-six million, six hundred seventy-four thousand, six hundred sixty-eight".