131606337572543 has 16 divisors (see below), whose sum is σ = 139110806263680. Its totient is φ = 124302331243776.

The previous prime is 131606337572509. The next prime is 131606337572603. The reversal of 131606337572543 is 345275733606131.

It is a cyclic number.

It is not a de Polignac number, because 131606337572543 - 2¹⁰ = 131606337571519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131606337532543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21453446 + ... + 26897267.

It is an arithmetic number, because the mean of its divisors is an integer number (8694425391480).

Almost surely, 2^{131606337572543} is an apocalyptic number.

131606337572543 is a deficient number, since it is larger than the sum of its proper divisors (7504468691137).

131606337572543 is a wasteful number, since it uses less digits than its factorization.

131606337572543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48352786.

The product of its (nonzero) digits is 28576800, while the sum is 56.

The spelling of 131606337572543 in words is "one hundred thirty-one trillion, six hundred six billion, three hundred thirty-seven million, five hundred seventy-two thousand, five hundred forty-three".