13032032644 has 24 divisors (see below), whose sum is σ = 23835714840. Its totient is φ = 6226461696.

The previous prime is 13032032633. The next prime is 13032032659. The reversal of 13032032644 is 44623023031.

It can be written as a sum of positive squares in 4 ways, for example, as 117983044 + 12914049600 = 10862^2 + 113640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567847 + ... + 590350.

It is an arithmetic number, because the mean of its divisors is an integer number (993154785).

Almost surely, 2^13032032644 is an apocalyptic number.

It is an amenable number.

13032032644 is a deficient number, since it is larger than the sum of its proper divisors (10803682196).

13032032644 is a wasteful number, since it uses less digits than its factorization.

13032032644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158327 (or 1158325 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13032032644 its reverse (44623023031), we get a palindrome (57655055675).

The spelling of 13032032644 in words is "thirteen billion, thirty-two million, thirty-two thousand, six hundred forty-four".