13722665472 has 240 divisors, whose sum is σ = 42150382560. Its totient is φ = 4283006976.

The previous prime is 13722665471. The next prime is 13722665479. The reversal of 13722665472 is 27456622731.

13722665472 is a `hidden beast` number, since 13 + 72 + 26 + 6 + 547 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (13722665471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22168779 + ... + 22169397.

It is an arithmetic number, because the mean of its divisors is an integer number (175626594).

Almost surely, 2^13722665472 is an apocalyptic number.

13722665472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13722665472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21075191280).

13722665472 is an abundant number, since it is smaller than the sum of its proper divisors (28427717088).

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

13722665472 is a wasteful number, since it uses less digits than its factorization.

13722665472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 924 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 13722665472 in words is "thirteen billion, seven hundred twenty-two million, six hundred sixty-five thousand, four hundred seventy-two".