66673400732 has 12 divisors (see below), whose sum is σ = 116680316256. Its totient is φ = 33336167520.

The previous prime is 66673400719. The next prime is 66673400771. The reversal of 66673400732 is 23700437666.

It is a congruent number.

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, 318557 + ... + 484587.

It is an arithmetic number, because the mean of its divisors is an integer number (9723359688).

Almost surely, 2^66673400732 is an apocalyptic number.

It is an amenable number.

66673400732 is a deficient number, since it is larger than the sum of its proper divisors (50006915524).

66673400732 is a wasteful number, since it uses less digits than its factorization.

66673400732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266428 (or 266426 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 44.

The spelling of 66673400732 in words is "sixty-six billion, six hundred seventy-three million, four hundred thousand, seven hundred thirty-two".