659945618317 has 8 divisors (see below), whose sum is σ = 675534404160. Its totient is φ = 644367796800.

The previous prime is 659945618221. The next prime is 659945618419. The reversal of 659945618317 is 713816549956.

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

It is not a de Polignac number, because 659945618317 - 2¹¹ = 659945616269 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 (659945612317) 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, 2619217 + ... + 2860102.

It is an arithmetic number, because the mean of its divisors is an integer number (84441800520).

Almost surely, 2^659945618317 is an apocalyptic number.

It is an amenable number.

659945618317 is a deficient number, since it is larger than the sum of its proper divisors (15588785843).

659945618317 is a wasteful number, since it uses less digits than its factorization.

659945618317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482163.

The product of its digits is 48988800, while the sum is 64.

The spelling of 659945618317 in words is "six hundred fifty-nine billion, nine hundred forty-five million, six hundred eighteen thousand, three hundred seventeen".