66683344795 has 4 divisors (see below), whose sum is σ = 80020013760. Its totient is φ = 53346675832.

The previous prime is 66683344787. The next prime is 66683344817. The reversal of 66683344795 is 59744338666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66683344795 - 2³ = 66683344787 is a prime.

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, 6668334475 + ... + 6668334484.

It is an arithmetic number, because the mean of its divisors is an integer number (20005003440).

Almost surely, 2^66683344795 is an apocalyptic number.

66683344795 is a deficient number, since it is larger than the sum of its proper divisors (13336668965).

66683344795 is a wasteful number, since it uses less digits than its factorization.

66683344795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336668964.

The product of its digits is 78382080, while the sum is 61.

The spelling of 66683344795 in words is "sixty-six billion, six hundred eighty-three million, three hundred forty-four thousand, seven hundred ninety-five".