13260634544545 has 4 divisors (see below), whose sum is σ = 15912761453460. Its totient is φ = 10608507635632.

The previous prime is 13260634544543. The next prime is 13260634544561. The reversal of 13260634544545 is 54544543606231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8614747437921 + 4645887106624 = 2935089^2 + 2155432^2 .

It is a cyclic number.

It is not a de Polignac number, because 13260634544545 - 2¹ = 13260634544543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13260634544492 and 13260634544501.

It is not an unprimeable number, because it can be changed into a prime (13260634544543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326063454450 + ... + 1326063454459.

It is an arithmetic number, because the mean of its divisors is an integer number (3978190363365).

Almost surely, 2^{13260634544545} is an apocalyptic number.

It is an amenable number.

13260634544545 is a deficient number, since it is larger than the sum of its proper divisors (2652126908915).

13260634544545 is an equidigital number, since it uses as much as digits as its factorization.

13260634544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652126908914.

The product of its (nonzero) digits is 20736000, while the sum is 52.

The spelling of 13260634544545 in words is "thirteen trillion, two hundred sixty billion, six hundred thirty-four million, five hundred forty-four thousand, five hundred forty-five".