66873254788 has 12 divisors (see below), whose sum is σ = 118676480832. Its totient is φ = 32965688840.

The previous prime is 66873254783. The next prime is 66873254797. The reversal of 66873254788 is 88745237866.

It is not an unprimeable number, because it can be changed into a prime (66873254783) by changing a digit.

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, 117734320 + ... + 117734887.

It is an arithmetic number, because the mean of its divisors is an integer number (9889706736).

Almost surely, 2^66873254788 is an apocalyptic number.

It is an amenable number.

66873254788 is a deficient number, since it is larger than the sum of its proper divisors (51803226044).

66873254788 is a wasteful number, since it uses less digits than its factorization.

66873254788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235469282 (or 235469280 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 64.

The spelling of 66873254788 in words is "sixty-six billion, eight hundred seventy-three million, two hundred fifty-four thousand, seven hundred eighty-eight".