13664251392 has 160 divisors (see below), whose sum is σ = 40463660160. Its totient is φ = 4062289920.

The previous prime is 13664251373. The next prime is 13664251397. The reversal of 13664251392 is 29315246631.

13664251392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13664251392² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13664251397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887859 + ... + 903117.

It is an arithmetic number, because the mean of its divisors is an integer number (252897876).

Almost surely, 2^13664251392 is an apocalyptic number.

13664251392 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 13664251392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20231830080).

13664251392 is an abundant number, since it is smaller than the sum of its proper divisors (26799408768).

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

13664251392 is a wasteful number, since it uses less digits than its factorization.

13664251392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15344 (or 15328 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The spelling of 13664251392 in words is "thirteen billion, six hundred sixty-four million, two hundred fifty-one thousand, three hundred ninety-two".