14221536317 has 4 divisors (see below), whose sum is σ = 14221924476. Its totient is φ = 14221148160.

The previous prime is 14221536311. The next prime is 14221536319. The reversal of 14221536317 is 71363512241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10643223556 + 3578312761 = 103166^2 + 59819^2 .

It is a cyclic number.

It is not a de Polignac number, because 14221536317 - 2⁶ = 14221536253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221536311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132638 + ... + 214559.

It is an arithmetic number, because the mean of its divisors is an integer number (3555481119).

Almost surely, 2^14221536317 is an apocalyptic number.

It is an amenable number.

14221536317 is a deficient number, since it is larger than the sum of its proper divisors (388159).

14221536317 is an equidigital number, since it uses as much as digits as its factorization.

14221536317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388158.

The product of its digits is 30240, while the sum is 35.

The spelling of 14221536317 in words is "fourteen billion, two hundred twenty-one million, five hundred thirty-six thousand, three hundred seventeen".