66668888668932 has 72 divisors (see below), whose sum is σ = 187756096574592. Its totient is φ = 19772848987200.

The previous prime is 66668888668873. The next prime is 66668888668933. The reversal of 66668888668932 is 23986688886666.

66668888668932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66668888668933) 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 23 ways as a sum of consecutive naturals, for example, 1791000319 + ... + 1791037542.

It is an arithmetic number, because the mean of its divisors is an integer number (2607723563536).

Almost surely, 2^{66668888668932} is an apocalyptic number.

It is an amenable number.

66668888668932 is an abundant number, since it is smaller than the sum of its proper divisors (121087207905660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66668888668932 is a wasteful number, since it uses less digits than its factorization.

66668888668932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582037929 (or 3582037924 counting only the distinct ones).

The product of its digits is 82556485632, while the sum is 90.

The spelling of 66668888668932 in words is "sixty-six trillion, six hundred sixty-eight billion, eight hundred eighty-eight million, six hundred sixty-eight thousand, nine hundred thirty-two".