666673670367 has 8 divisors (see below), whose sum is σ = 987664696880. Its totient is φ = 444449113560.

The previous prime is 666673670323. The next prime is 666673670393. The reversal of 666673670367 is 763076376666.

It is not a de Polignac number, because 666673670367 - 2⁷ = 666673670239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666673670317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12345808684 + ... + 12345808737.

It is an arithmetic number, because the mean of its divisors is an integer number (123458087110).

Almost surely, 2^666673670367 is an apocalyptic number.

666673670367 is a deficient number, since it is larger than the sum of its proper divisors (320991026513).

666673670367 is a wasteful number, since it uses less digits than its factorization.

666673670367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24691617430 (or 24691617424 counting only the distinct ones).

The product of its (nonzero) digits is 144027072, while the sum is 63.

The spelling of 666673670367 in words is "six hundred sixty-six billion, six hundred seventy-three million, six hundred seventy thousand, three hundred sixty-seven".