13106020805 has 16 divisors (see below), whose sum is σ = 15909197040. Its totient is φ = 10364003328.

The previous prime is 13106020757. The next prime is 13106020867. The reversal of 13106020805 is 50802060131.

It can be written as a sum of positive squares in 8 ways, for example, as 4037077444 + 9068943361 = 63538^2 + 95231^2 .

It is a cyclic number.

It is not a de Polignac number, because 13106020805 - 2²⁴ = 13089243589 is a prime.

It is a congruent number.

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, 179651 + ... + 241839.

It is an arithmetic number, because the mean of its divisors is an integer number (994324815).

Almost surely, 2^13106020805 is an apocalyptic number.

It is an amenable number.

13106020805 is a deficient number, since it is larger than the sum of its proper divisors (2803176235).

13106020805 is a wasteful number, since it uses less digits than its factorization.

13106020805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62680.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 13106020805 its reverse (50802060131), we get a palindrome (63908080936).

The spelling of 13106020805 in words is "thirteen billion, one hundred six million, twenty thousand, eight hundred five".