66752844832 has 12 divisors (see below), whose sum is σ = 131419663326. Its totient is φ = 33376422400.

The previous prime is 66752844787. The next prime is 66752844857. The reversal of 66752844832 is 23844825766.

It can be written as a sum of positive squares in only one way, i.e., 47299290256 + 19453554576 = 217484^2 + 139476^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043013169 + ... + 1043013232.

Almost surely, 2^66752844832 is an apocalyptic number.

It is an amenable number.

66752844832 is a deficient number, since it is larger than the sum of its proper divisors (64666818494).

66752844832 is a wasteful number, since it uses less digits than its factorization.

66752844832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086026411 (or 2086026403 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 55.

The spelling of 66752844832 in words is "sixty-six billion, seven hundred fifty-two million, eight hundred forty-four thousand, eight hundred thirty-two".