11663225504617 has 2 divisors, whose sum is σ = 11663225504618. Its totient is φ = 11663225504616.

The previous prime is 11663225504603. The next prime is 11663225504647. The reversal of 11663225504617 is 71640552236611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9808647279376 + 1854578225241 = 3131876^2 + 1361829^2 .

It is an emirp because it is prime and its reverse (71640552236611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11663225504617 is a prime.

It is not a weakly prime, because it can be changed into another prime (11663225504647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831612752308 + 5831612752309.

It is an arithmetic number, because the mean of its divisors is an integer number (5831612752309).

Almost surely, 2^{11663225504617} is an apocalyptic number.

It is an amenable number.

11663225504617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11663225504617 is an equidigital number, since it uses as much as digits as its factorization.

11663225504617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 11663225504617 in words is "eleven trillion, six hundred sixty-three billion, two hundred twenty-five million, five hundred four thousand, six hundred seventeen".