6668074668 has 12 divisors (see below), whose sum is σ = 15558840920. Its totient is φ = 2222691552.

The previous prime is 6668074657. The next prime is 6668074717. The reversal of 6668074668 is 8664708666.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277836433 + ... + 277836456.

Almost surely, 2^6668074668 is an apocalyptic number.

It is an amenable number.

6668074668 is an abundant number, since it is smaller than the sum of its proper divisors (8890766252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6668074668 is a wasteful number, since it uses less digits than its factorization.

6668074668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555672896 (or 555672894 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The square root of 6668074668 is about 81658.2798496270. The cubic root of 6668074668 is about 1882.2045464336.

The spelling of 6668074668 in words is "six billion, six hundred sixty-eight million, seventy-four thousand, six hundred sixty-eight".