13352451455521 has 8 divisors (see below), whose sum is σ = 14263003847304. Its totient is φ = 12455800627200.

The previous prime is 13352451455509. The next prime is 13352451455527. The reversal of 13352451455521 is 12555415425331.

It can be written as a sum of positive squares in 4 ways, for example, as 40636512225 + 13311814943296 = 201585^2 + 3648536^2 .

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 13352451455521 - 2²³ = 13352443066913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13352451455527) 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, 3475388880 + ... + 3475392721.

It is an arithmetic number, because the mean of its divisors is an integer number (1782875480913).

Almost surely, 2^{13352451455521} is an apocalyptic number.

It is an amenable number.

13352451455521 is a deficient number, since it is larger than the sum of its proper divisors (910552391783).

13352451455521 is a wasteful number, since it uses less digits than its factorization.

13352451455521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6950781731.

The product of its digits is 1800000, while the sum is 46.

The spelling of 13352451455521 in words is "thirteen trillion, three hundred fifty-two billion, four hundred fifty-one million, four hundred fifty-five thousand, five hundred twenty-one".