659841013 has 16 divisors (see below), whose sum is σ = 721704816. Its totient is φ = 599639040.

The previous prime is 659841011. The next prime is 659841019. The reversal of 659841013 is 310148956.

It can be written as a sum of positive squares in 8 ways, for example, as 209467729 + 450373284 = 14473^2 + 21222^2 .

It is not a de Polignac number, because 659841013 - 2¹ = 659841011 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 (659841011) 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 15 ways as a sum of consecutive naturals, for example, 229203 + ... + 232063.

It is an arithmetic number, because the mean of its divisors is an integer number (45106551).

Almost surely, 2^659841013 is an apocalyptic number.

It is an amenable number.

659841013 is a deficient number, since it is larger than the sum of its proper divisors (61863803).

659841013 is a wasteful number, since it uses less digits than its factorization.

659841013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 659841013 is about 25687.3706906721. The cubic root of 659841013 is about 870.5888526819.

Adding to 659841013 its reverse (310148956), we get a palindrome (969989969).

The spelling of 659841013 in words is "six hundred fifty-nine million, eight hundred forty-one thousand, thirteen".