13661912372 has 12 divisors (see below), whose sum is σ = 24013671360. Its totient is φ = 6800863416.

The previous prime is 13661912279. The next prime is 13661912387. The reversal of 13661912372 is 27321916631.

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, 7522172 + ... + 7523987.

It is an arithmetic number, because the mean of its divisors is an integer number (2001139280).

Almost surely, 2^13661912372 is an apocalyptic number.

It is an amenable number.

13661912372 is a deficient number, since it is larger than the sum of its proper divisors (10351758988).

13661912372 is a wasteful number, since it uses less digits than its factorization.

13661912372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15046390 (or 15046388 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The spelling of 13661912372 in words is "thirteen billion, six hundred sixty-one million, nine hundred twelve thousand, three hundred seventy-two".