659945618315 has 16 divisors (see below), whose sum is σ = 792648529920. Its totient is φ = 527480808960.

The previous prime is 659945618221. The next prime is 659945618419. The reversal of 659945618315 is 513816549956.

It is not a de Polignac number, because 659945618315 - 2¹⁰ = 659945617291 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48636662 + ... + 48650228.

It is an arithmetic number, because the mean of its divisors is an integer number (49540533120).

Almost surely, 2^659945618315 is an apocalyptic number.

659945618315 is a deficient number, since it is larger than the sum of its proper divisors (132702911605).

659945618315 is a wasteful number, since it uses less digits than its factorization.

659945618315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622.

The product of its digits is 34992000, while the sum is 62.

The spelling of 659945618315 in words is "six hundred fifty-nine billion, nine hundred forty-five million, six hundred eighteen thousand, three hundred fifteen".