13699722456 has 160 divisors (see below), whose sum is σ = 46161984000. Its totient is φ = 3708172224.

The previous prime is 13699722433. The next prime is 13699722457. The reversal of 13699722456 is 65422799631.

13699722456 is a `hidden beast` number, since 1 + 36 + 99 + 72 + 2 + 456 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13699722457) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6705 + ... + 165663.

It is an arithmetic number, because the mean of its divisors is an integer number (288512400).

Almost surely, 2^13699722456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13699722456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23080992000).

13699722456 is an abundant number, since it is smaller than the sum of its proper divisors (32462261544).

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

13699722456 is a wasteful number, since it uses less digits than its factorization.

13699722456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159003 (or 158990 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 13699722456 in words is "thirteen billion, six hundred ninety-nine million, seven hundred twenty-two thousand, four hundred fifty-six".