13111606609 has 6 divisors (see below), whose sum is σ = 13928246774. Its totient is φ = 12340335360.

The previous prime is 13111606601. The next prime is 13111606637. The reversal of 13111606609 is 90660611131.

It can be written as a sum of positive squares in 3 ways, for example, as 7873900225 + 5237706384 = 88735^2 + 72372^2 .

It is not a de Polignac number, because 13111606609 - 2³ = 13111606601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111606601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22684152 + ... + 22684729.

Almost surely, 2^13111606609 is an apocalyptic number.

It is an amenable number.

13111606609 is a deficient number, since it is larger than the sum of its proper divisors (816640165).

13111606609 is an equidigital number, since it uses as much as digits as its factorization.

13111606609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45368915 (or 45368898 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 13111606609 in words is "thirteen billion, one hundred eleven million, six hundred six thousand, six hundred nine".