11660220322313 has 4 divisors (see below), whose sum is σ = 11834253461520. Its totient is φ = 11486187183108.

The previous prime is 11660220322279. The next prime is 11660220322357. The reversal of 11660220322313 is 31322302206611.

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 a cyclic number.

It is not a de Polignac number, because 11660220322313 - 2⁶ = 11660220322249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11660220322313.

It is not an unprimeable number, because it can be changed into a prime (11660220322363) 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, 87016569503 + ... + 87016569636.

It is an arithmetic number, because the mean of its divisors is an integer number (2958563365380).

Almost surely, 2^{11660220322313} is an apocalyptic number.

It is an amenable number.

11660220322313 is a deficient number, since it is larger than the sum of its proper divisors (174033139207).

11660220322313 is an equidigital number, since it uses as much as digits as its factorization.

11660220322313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174033139206.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 11660220322313 its reverse (31322302206611), we get a palindrome (42982522528924).

The spelling of 11660220322313 in words is "eleven trillion, six hundred sixty billion, two hundred twenty million, three hundred twenty-two thousand, three hundred thirteen".