13336314137621 has 8 divisors (see below), whose sum is σ = 13360725584280. Its totient is φ = 13311904370688.

The previous prime is 13336314137617. The next prime is 13336314137659. The reversal of 13336314137621 is 12673141363331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4767902500 + 13331546235121 = 69050^2 + 3651239^2 .

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 13336314137621 - 2² = 13336314137617 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 (13336314137681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16065065 + ... + 16874801.

It is an arithmetic number, because the mean of its divisors is an integer number (1670090698035).

Almost surely, 2^{13336314137621} is an apocalyptic number.

It is an amenable number.

13336314137621 is a deficient number, since it is larger than the sum of its proper divisors (24411446659).

13336314137621 is an equidigital number, since it uses as much as digits as its factorization.

13336314137621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839863.

The product of its digits is 489888, while the sum is 44.

The spelling of 13336314137621 in words is "thirteen trillion, three hundred thirty-six billion, three hundred fourteen million, one hundred thirty-seven thousand, six hundred twenty-one".