13520541544 has 16 divisors (see below), whose sum is σ = 25364549700. Its totient is φ = 6756661632.

The previous prime is 13520541523. The next prime is 13520541547. The reversal of 13520541544 is 44514502531.

13520541544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11536908100 + 1983633444 = 107410^2 + 44538^2 .

It is not an unprimeable number, because it can be changed into a prime (13520541547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435189 + ... + 465220.

Almost surely, 2^13520541544 is an apocalyptic number.

It is an amenable number.

13520541544 is a deficient number, since it is larger than the sum of its proper divisors (11844008156).

13520541544 is a wasteful number, since it uses less digits than its factorization.

13520541544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902292 (or 902288 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 13520541544 in words is "thirteen billion, five hundred twenty million, five hundred forty-one thousand, five hundred forty-four".