13163463261 has 24 divisors (see below), whose sum is σ = 20764912896. Its totient is φ = 7986494880.

The previous prime is 13163463253. The next prime is 13163463277. The reversal of 13163463261 is 16236436131.

13163463261 is a `hidden beast` number, since 1 + 3 + 16 + 3 + 4 + 632 + 6 + 1 = 666.

It is not a de Polignac number, because 13163463261 - 2³ = 13163463253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163463241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784005 + ... + 800618.

It is an arithmetic number, because the mean of its divisors is an integer number (865204704).

Almost surely, 2^13163463261 is an apocalyptic number.

It is an amenable number.

13163463261 is a deficient number, since it is larger than the sum of its proper divisors (7601449635).

13163463261 is a wasteful number, since it uses less digits than its factorization.

13163463261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584713 (or 1584710 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

Adding to 13163463261 its reverse (16236436131), we get a palindrome (29399899392).

The spelling of 13163463261 in words is "thirteen billion, one hundred sixty-three million, four hundred sixty-three thousand, two hundred sixty-one".