13180709522 has 6 divisors (see below), whose sum is σ = 19771307829. Its totient is φ = 6590273580.

The previous prime is 13180709519. The next prime is 13180709533. The reversal of 13180709522 is 22590708131.

It can be written as a sum of positive squares in 2 ways, for example, as 12941110081 + 239599441 = 113759^2 + 15479^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81181.

It is a super-2 number, since 2×13180709522² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 121772 + ... + 202952.

Almost surely, 2^13180709522 is an apocalyptic number.

13180709522 is a deficient number, since it is larger than the sum of its proper divisors (6590598307).

13180709522 is an frugal number, since it uses more digits than its factorization.

13180709522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162364 (or 81183 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 13180709522 in words is "thirteen billion, one hundred eighty million, seven hundred nine thousand, five hundred twenty-two".