66673393676 has 12 divisors (see below), whose sum is σ = 116682217008. Its totient is φ = 33335617392.

The previous prime is 66673393651. The next prime is 66673393751. The reversal of 66673393676 is 67639337666.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121871 + ... + 384966.

It is an arithmetic number, because the mean of its divisors is an integer number (9723518084).

Almost surely, 2^66673393676 is an apocalyptic number.

It is an amenable number.

66673393676 is a deficient number, since it is larger than the sum of its proper divisors (50008823332).

66673393676 is a wasteful number, since it uses less digits than its factorization.

66673393676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539728 (or 539726 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 62.

The spelling of 66673393676 in words is "sixty-six billion, six hundred seventy-three million, three hundred ninety-three thousand, six hundred seventy-six".