13163265505 has 24 divisors (see below), whose sum is σ = 17394428160. Its totient is φ = 9555773760.

The previous prime is 13163265497. The next prime is 13163265571. The reversal of 13163265505 is 50556236131.

It is not a de Polignac number, because 13163265505 - 2³ = 13163265497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82161 + ... + 181870.

It is an arithmetic number, because the mean of its divisors is an integer number (724767840).

Almost surely, 2^13163265505 is an apocalyptic number.

It is an amenable number.

13163265505 is a deficient number, since it is larger than the sum of its proper divisors (4231162655).

13163265505 is a wasteful number, since it uses less digits than its factorization.

13163265505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264121 (or 264108 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 13163265505 in words is "thirteen billion, one hundred sixty-three million, two hundred sixty-five thousand, five hundred five".