13324416545 has 12 divisors (see below), whose sum is σ = 17575016340. Its totient is φ = 9690484320.

The previous prime is 13324416509. The next prime is 13324416551. The reversal of 13324416545 is 54561442331.

It can be written as a sum of positive squares in 2 ways, for example, as 6017415184 + 7307001361 = 77572^2 + 85481^2 .

It is not a de Polignac number, because 13324416545 - 2¹² = 13324412449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13324416499 and 13324416508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11011310 + ... + 11012519.

It is an arithmetic number, because the mean of its divisors is an integer number (1464584695).

Almost surely, 2^13324416545 is an apocalyptic number.

It is an amenable number.

13324416545 is a deficient number, since it is larger than the sum of its proper divisors (4250599795).

13324416545 is a wasteful number, since it uses less digits than its factorization.

13324416545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22023856 (or 22023845 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

Adding to 13324416545 its reverse (54561442331), we get a palindrome (67885858876).

The spelling of 13324416545 in words is "thirteen billion, three hundred twenty-four million, four hundred sixteen thousand, five hundred forty-five".