13663322033281 has 2 divisors, whose sum is σ = 13663322033282. Its totient is φ = 13663322033280.

The previous prime is 13663322033209. The next prime is 13663322033303. The reversal of 13663322033281 is 18233022336631.

13663322033281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13377423290256 + 285898743025 = 3657516^2 + 534695^2 .

It is an emirp because it is prime and its reverse (18233022336631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13663322033281 - 2¹⁵ = 13663322000513 is a prime.

It is a super-2 number, since 2×13663322033281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13663322633281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6831661016640 + 6831661016641.

It is an arithmetic number, because the mean of its divisors is an integer number (6831661016641).

Almost surely, 2^{13663322033281} is an apocalyptic number.

It is an amenable number.

13663322033281 is a deficient number, since it is larger than the sum of its proper divisors (1).

13663322033281 is an equidigital number, since it uses as much as digits as its factorization.

13663322033281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 13663322033281 in words is "thirteen trillion, six hundred sixty-three billion, three hundred twenty-two million, thirty-three thousand, two hundred eighty-one".