66884206628 has 12 divisors (see below), whose sum is σ = 117765444720. Its totient is φ = 33236936712.

The previous prime is 66884206607. The next prime is 66884206651. The reversal of 66884206628 is 82660248866.

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, 51290918 + ... + 51292221.

It is an arithmetic number, because the mean of its divisors is an integer number (9813787060).

Almost surely, 2^66884206628 is an apocalyptic number.

It is an amenable number.

66884206628 is a deficient number, since it is larger than the sum of its proper divisors (50881238092).

66884206628 is a wasteful number, since it uses less digits than its factorization.

66884206628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102583306 (or 102583304 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 66884206628 in words is "sixty-six billion, eight hundred eighty-four million, two hundred six thousand, six hundred twenty-eight".