13604632144 has 20 divisors (see below), whose sum is σ = 26535885300. Its totient is φ = 6756661760.

The previous prime is 13604632123. The next prime is 13604632159. The reversal of 13604632144 is 44123640631.

It can be written as a sum of positive squares in 2 ways, for example, as 1374926400 + 12229705744 = 37080^2 + 110588^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850937 + ... + 2855704.

It is an arithmetic number, because the mean of its divisors is an integer number (1326794265).

Almost surely, 2^13604632144 is an apocalyptic number.

It is an amenable number.

13604632144 is a deficient number, since it is larger than the sum of its proper divisors (12931253156).

13604632144 is a wasteful number, since it uses less digits than its factorization.

13604632144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706798 (or 5706792 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 13604632144 in words is "thirteen billion, six hundred four million, six hundred thirty-two thousand, one hundred forty-four".