13662014521 has 8 divisors (see below), whose sum is σ = 14964478920. Its totient is φ = 12414974208.

The previous prime is 13662014519. The next prime is 13662014549. The reversal of 13662014521 is 12541026631.

It is a happy number.

13662014521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3828515625 + 9833498896 = 61875^2 + 99164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13662014521 - 2¹ = 13662014519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13662014501) 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 7 ways as a sum of consecutive naturals, for example, 13855506 + ... + 13856491.

It is an arithmetic number, because the mean of its divisors is an integer number (1870559865).

Almost surely, 2^13662014521 is an apocalyptic number.

It is an amenable number.

13662014521 is a deficient number, since it is larger than the sum of its proper divisors (1302464399).

13662014521 is a wasteful number, since it uses less digits than its factorization.

13662014521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27712043.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 13662014521 in words is "thirteen billion, six hundred sixty-two million, fourteen thousand, five hundred twenty-one".