13005064503 has 12 divisors (see below), whose sum is σ = 18828482400. Its totient is φ = 8650017216.

The previous prime is 13005064487. The next prime is 13005064511. The reversal of 13005064503 is 30546050031.

13005064503 is a `hidden beast` number, since 13 + 0 + 0 + 5 + 0 + 645 + 0 + 3 = 666.

It is not a de Polignac number, because 13005064503 - 2⁴ = 13005064487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005064903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1664703 + ... + 1672496.

It is an arithmetic number, because the mean of its divisors is an integer number (1569040200).

Almost surely, 2^13005064503 is an apocalyptic number.

13005064503 is a deficient number, since it is larger than the sum of its proper divisors (5823417897).

13005064503 is a wasteful number, since it uses less digits than its factorization.

13005064503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337638 (or 3337635 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 13005064503 in words is "thirteen billion, five million, sixty-four thousand, five hundred three".