13140652565 has 16 divisors (see below), whose sum is σ = 15939703920. Its totient is φ = 10398689280.

The previous prime is 13140652541. The next prime is 13140652621. The reversal of 13140652565 is 56525604131.

It can be written as a sum of positive squares in 8 ways, for example, as 3123244996 + 10017407569 = 55886^2 + 100087^2 .

It is not a de Polignac number, because 13140652565 - 2¹⁴ = 13140636181 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, 1094495 + ... + 1106435.

It is an arithmetic number, because the mean of its divisors is an integer number (996231495).

Almost surely, 2^13140652565 is an apocalyptic number.

It is an amenable number.

13140652565 is a deficient number, since it is larger than the sum of its proper divisors (2799051355).

13140652565 is a wasteful number, since it uses less digits than its factorization.

13140652565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 13140652565 in words is "thirteen billion, one hundred forty million, six hundred fifty-two thousand, five hundred sixty-five".