13520056344 has 64 divisors (see below), whose sum is σ = 36142835040. Its totient is φ = 4199577600.

The previous prime is 13520056343. The next prime is 13520056367. The reversal of 13520056344 is 44365002531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520056343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122839 + ... + 205254.

Almost surely, 2^13520056344 is an apocalyptic number.

It is an amenable number.

13520056344 is an abundant number, since it is smaller than the sum of its proper divisors (22622778696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13520056344 is a wasteful number, since it uses less digits than its factorization.

13520056344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328220 (or 328216 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 13520056344 its reverse (44365002531), we get a palindrome (57885058875).

The spelling of 13520056344 in words is "thirteen billion, five hundred twenty million, fifty-six thousand, three hundred forty-four".