11663320413 has 4 divisors (see below), whose sum is σ = 15551093888. Its totient is φ = 7775546940.

The previous prime is 11663320399. The next prime is 11663320421. The reversal of 11663320413 is 31402336611.

11663320413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11663320413 - 2⁵ = 11663320381 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 (11663320313) 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 3 ways as a sum of consecutive naturals, for example, 1943886733 + ... + 1943886738.

It is an arithmetic number, because the mean of its divisors is an integer number (3887773472).

Almost surely, 2^11663320413 is an apocalyptic number.

It is an amenable number.

11663320413 is a deficient number, since it is larger than the sum of its proper divisors (3887773475).

11663320413 is an equidigital number, since it uses as much as digits as its factorization.

11663320413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887773474.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 11663320413 in words is "eleven billion, six hundred sixty-three million, three hundred twenty thousand, four hundred thirteen".