13271537663 has 8 divisors (see below), whose sum is σ = 13655830176. Its totient is φ = 12892204000.

The previous prime is 13271537623. The next prime is 13271537687. The reversal of 13271537663 is 36673517231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13271537663 - 2¹² = 13271533567 is a prime.

It is a super-2 number, since 2×13271537663² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13271537623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234283 + ... + 1244988.

It is an arithmetic number, because the mean of its divisors is an integer number (1706978772).

Almost surely, 2^13271537663 is an apocalyptic number.

13271537663 is a deficient number, since it is larger than the sum of its proper divisors (384292513).

13271537663 is a wasteful number, since it uses less digits than its factorization.

13271537663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479425.

The product of its digits is 476280, while the sum is 44.

The spelling of 13271537663 in words is "thirteen billion, two hundred seventy-one million, five hundred thirty-seven thousand, six hundred sixty-three".