13721414166 has 24 divisors (see below), whose sum is σ = 30036226584. Its totient is φ = 4526651520.

The previous prime is 13721414159. The next prime is 13721414197. The reversal of 13721414166 is 66141412731.

13721414166 is a `hidden beast` number, since 13 + 72 + 1 + 414 + 166 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13721414166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3927640 + ... + 3931131.

It is an arithmetic number, because the mean of its divisors is an integer number (1251509441).

Almost surely, 2^13721414166 is an apocalyptic number.

13721414166 is an abundant number, since it is smaller than the sum of its proper divisors (16314812418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13721414166 is a wasteful number, since it uses less digits than its factorization.

13721414166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858876 (or 7858873 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

Adding to 13721414166 its reverse (66141412731), we get a palindrome (79862826897).

The spelling of 13721414166 in words is "thirteen billion, seven hundred twenty-one million, four hundred fourteen thousand, one hundred sixty-six".