13003520636 has 12 divisors (see below), whose sum is σ = 22757402640. Its totient is φ = 6501405600.

The previous prime is 13003520591. The next prime is 13003520659. The reversal of 13003520636 is 63602530031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13003520599 and 13003520608.

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, 4736 + ... + 161336.

It is an arithmetic number, because the mean of its divisors is an integer number (1896450220).

Almost surely, 2^13003520636 is an apocalyptic number.

It is an amenable number.

13003520636 is a deficient number, since it is larger than the sum of its proper divisors (9753882004).

13003520636 is a wasteful number, since it uses less digits than its factorization.

13003520636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177364 (or 177362 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The spelling of 13003520636 in words is "thirteen billion, three million, five hundred twenty thousand, six hundred thirty-six".