66382769317 has 8 divisors (see below), whose sum is σ = 66918297600. Its totient is φ = 65847441744.

The previous prime is 66382769287. The next prime is 66382769329. The reversal of 66382769317 is 71396728366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66382769317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66382767317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653559 + ... + 748267.

It is an arithmetic number, because the mean of its divisors is an integer number (8364787200).

Almost surely, 2^66382769317 is an apocalyptic number.

It is an amenable number.

66382769317 is a deficient number, since it is larger than the sum of its proper divisors (535528283).

66382769317 is a wasteful number, since it uses less digits than its factorization.

66382769317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100355.

The product of its digits is 13716864, while the sum is 58.

The spelling of 66382769317 in words is "sixty-six billion, three hundred eighty-two million, seven hundred sixty-nine thousand, three hundred seventeen".