13132544643 has 48 divisors (see below), whose sum is σ = 20455512480. Its totient is φ = 8101513728.

The previous prime is 13132544603. The next prime is 13132544651. The reversal of 13132544643 is 34644523131.

13132544643 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 2 + 5 + 4 + 4 + 643 = 666.

It is not a de Polignac number, because 13132544643 - 2¹⁴ = 13132528259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13132544598 and 13132544607.

It is not an unprimeable number, because it can be changed into a prime (13132544603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 636871 + ... + 657167.

It is an arithmetic number, because the mean of its divisors is an integer number (426156510).

Almost surely, 2^13132544643 is an apocalyptic number.

13132544643 is a deficient number, since it is larger than the sum of its proper divisors (7322967837).

13132544643 is a wasteful number, since it uses less digits than its factorization.

13132544643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20436 (or 20433 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The spelling of 13132544643 in words is "thirteen billion, one hundred thirty-two million, five hundred forty-four thousand, six hundred forty-three".