13144315544 has 16 divisors (see below), whose sum is σ = 26095332600. Its totient is φ = 6185560192.

The previous prime is 13144315529. The next prime is 13144315553. The reversal of 13144315544 is 44551344131.

It is a super-2 number, since 2×13144315544² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48324554 + ... + 48324825.

Almost surely, 2^13144315544 is an apocalyptic number.

It is an amenable number.

13144315544 is a deficient number, since it is larger than the sum of its proper divisors (12951017056).

13144315544 is a wasteful number, since it uses less digits than its factorization.

13144315544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96649402 (or 96649398 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

Adding to 13144315544 its reverse (44551344131), we get a palindrome (57695659675).

The spelling of 13144315544 in words is "thirteen billion, one hundred forty-four million, three hundred fifteen thousand, five hundred forty-four".