13332648509 has 4 divisors (see below), whose sum is σ = 13657835100. Its totient is φ = 13007461920.

The previous prime is 13332648493. The next prime is 13332648569. The reversal of 13332648509 is 90584623331.

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 783720025 + 12548928484 = 27995^2 + 112022^2 .

It is a cyclic number.

It is not a de Polignac number, because 13332648509 - 2⁴ = 13332648493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13332648509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332648569) 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, 162593234 + ... + 162593315.

It is an arithmetic number, because the mean of its divisors is an integer number (3414458775).

Almost surely, 2^13332648509 is an apocalyptic number.

It is an amenable number.

13332648509 is a deficient number, since it is larger than the sum of its proper divisors (325186591).

13332648509 is an equidigital number, since it uses as much as digits as its factorization.

13332648509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325186590.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 13332648509 in words is "thirteen billion, three hundred thirty-two million, six hundred forty-eight thousand, five hundred nine".