659942715 has 16 divisors (see below), whose sum is σ = 1080465408. Its totient is φ = 343783776.

The previous prime is 659942707. The next prime is 659942741. The reversal of 659942715 is 517249956.

It is not a de Polignac number, because 659942715 - 2³ = 659942707 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510939 + ... + 512228.

It is an arithmetic number, because the mean of its divisors is an integer number (67529088).

Almost surely, 2^659942715 is an apocalyptic number.

659942715 is a deficient number, since it is larger than the sum of its proper divisors (420522693).

659942715 is a wasteful number, since it uses less digits than its factorization.

659942715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023218.

The product of its digits is 680400, while the sum is 48.

The square root of 659942715 is about 25689.3502253366. The cubic root of 659942715 is about 870.6335786473.

The spelling of 659942715 in words is "six hundred fifty-nine million, nine hundred forty-two thousand, seven hundred fifteen".