13521660536 has 32 divisors (see below), whose sum is σ = 26897664000. Its totient is φ = 6354554976.

The previous prime is 13521660521. The next prime is 13521660541. The reversal of 13521660536 is 63506612531.

13521660536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 13521660536.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 330926 + ... + 369533.

It is an arithmetic number, because the mean of its divisors is an integer number (840552000).

Almost surely, 2^13521660536 is an apocalyptic number.

It is an amenable number.

13521660536 is a deficient number, since it is larger than the sum of its proper divisors (13376003464).

13521660536 is a wasteful number, since it uses less digits than its factorization.

13521660536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700611 (or 700607 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 13521660536 in words is "thirteen billion, five hundred twenty-one million, six hundred sixty thousand, five hundred thirty-six".