659715271899 has 4 divisors (see below), whose sum is σ = 879620362536. Its totient is φ = 439810181264.

The previous prime is 659715271879. The next prime is 659715271913. The reversal of 659715271899 is 998172517956.

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 659715271899 - 2¹³ = 659715263707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (659715271879) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109952545314 + ... + 109952545319.

It is an arithmetic number, because the mean of its divisors is an integer number (219905090634).

Almost surely, 2^659715271899 is an apocalyptic number.

659715271899 is a deficient number, since it is larger than the sum of its proper divisors (219905090637).

659715271899 is a wasteful number, since it uses less digits than its factorization.

659715271899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219905090636.

The product of its digits is 85730400, while the sum is 69.

The spelling of 659715271899 in words is "six hundred fifty-nine billion, seven hundred fifteen million, two hundred seventy-one thousand, eight hundred ninety-nine".