13601566144 has 28 divisors (see below), whose sum is σ = 27009547200. Its totient is φ = 6796011008.

The previous prime is 13601566129. The next prime is 13601566163. The reversal of 13601566144 is 44166510631.

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, 18252 + ... + 165940.

Almost surely, 2^13601566144 is an apocalyptic number.

It is an amenable number.

13601566144 is a deficient number, since it is larger than the sum of its proper divisors (13407981056).

13601566144 is a wasteful number, since it uses less digits than its factorization.

13601566144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149140 (or 149130 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

It can be divided in two parts, 1360 and 1566144, that added together give a square (1567504 = 1252²).

The spelling of 13601566144 in words is "thirteen billion, six hundred one million, five hundred sixty-six thousand, one hundred forty-four".