13045531161 has 32 divisors (see below), whose sum is σ = 19562618880. Its totient is φ = 7672636224.

The previous prime is 13045531159. The next prime is 13045531181. The reversal of 13045531161 is 16113554031.

It is not a de Polignac number, because 13045531161 - 2¹ = 13045531159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13045531181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1220880 + ... + 1231518.

It is an arithmetic number, because the mean of its divisors is an integer number (611331840).

Almost surely, 2^13045531161 is an apocalyptic number.

It is an amenable number.

13045531161 is a deficient number, since it is larger than the sum of its proper divisors (6517087719).

13045531161 is a wasteful number, since it uses less digits than its factorization.

13045531161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12045.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 13045531161 in words is "thirteen billion, forty-five million, five hundred thirty-one thousand, one hundred sixty-one".