12641115562531 has 8 divisors (see below), whose sum is σ = 13085845999200. Its totient is φ = 12196973785920.

The previous prime is 12641115562463. The next prime is 12641115562561. The reversal of 12641115562531 is 13526551114621.

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 12641115562531 - 2²⁵ = 12641082008099 is a prime.

It is a super-2 number, since 2×12641115562531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12641115562561) 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, 147121311 + ... + 147207208.

It is an arithmetic number, because the mean of its divisors is an integer number (1635730749900).

Almost surely, 2^{12641115562531} is an apocalyptic number.

12641115562531 is a deficient number, since it is larger than the sum of its proper divisors (444730436669).

12641115562531 is a wasteful number, since it uses less digits than its factorization.

12641115562531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294330029.

The product of its digits is 216000, while the sum is 43.

The spelling of 12641115562531 in words is "twelve trillion, six hundred forty-one billion, one hundred fifteen million, five hundred sixty-two thousand, five hundred thirty-one".