66802068748 has 12 divisors (see below), whose sum is σ = 120934779840. Its totient is φ = 32249274512.

The previous prime is 66802068703. The next prime is 66802068757. The reversal of 66802068748 is 84786020866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287939836 + ... + 287940067.

It is an arithmetic number, because the mean of its divisors is an integer number (10077898320).

Almost surely, 2^66802068748 is an apocalyptic number.

It is an amenable number.

66802068748 is a deficient number, since it is larger than the sum of its proper divisors (54132711092).

66802068748 is a wasteful number, since it uses less digits than its factorization.

66802068748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575879936 (or 575879934 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 66802068748 in words is "sixty-six billion, eight hundred two million, sixty-eight thousand, seven hundred forty-eight".