666733333394 has 16 divisors (see below), whose sum is σ = 1038632150688. Its totient is φ = 320754040992.

The previous prime is 666733333361. The next prime is 666733333417. The reversal of 666733333394 is 493333337666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57850307 + ... + 57861830.

It is an arithmetic number, because the mean of its divisors is an integer number (64914509418).

Almost surely, 2^666733333394 is an apocalyptic number.

666733333394 is a deficient number, since it is larger than the sum of its proper divisors (371898817294).

666733333394 is a wasteful number, since it uses less digits than its factorization.

666733333394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115712249.

The product of its digits is 39680928, while the sum is 56.

The spelling of 666733333394 in words is "six hundred sixty-six billion, seven hundred thirty-three million, three hundred thirty-three thousand, three hundred ninety-four".