66773888324 has 24 divisors (see below), whose sum is σ = 137283379968. Its totient is φ = 28017015840.

The previous prime is 66773888303. The next prime is 66773888341. The reversal of 66773888324 is 42388837766.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58368212 + ... + 58369355.

It is an arithmetic number, because the mean of its divisors is an integer number (5720140832).

Almost surely, 2^66773888324 is an apocalyptic number.

It is an amenable number.

66773888324 is an abundant number, since it is smaller than the sum of its proper divisors (70509491644).

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

66773888324 is a wasteful number, since it uses less digits than its factorization.

66773888324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116737595 (or 116737593 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 62.

The spelling of 66773888324 in words is "sixty-six billion, seven hundred seventy-three million, eight hundred eighty-eight thousand, three hundred twenty-four".