605216322111361 has 2 divisors, whose sum is σ = 605216322111362. Its totient is φ = 605216322111360.

The previous prime is 605216322111277. The next prime is 605216322111367. The reversal of 605216322111361 is 163111223612506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485207452130625 + 120008869980736 = 22027425^2 + 10954856^2 .

It is a cyclic number.

It is not a de Polignac number, because 605216322111361 - 2⁴⁵ = 570031950022529 is a prime.

It is not a weakly prime, because it can be changed into another prime (605216322111367) 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, 302608161055680 + 302608161055681.

It is an arithmetic number, because the mean of its divisors is an integer number (302608161055681).

Almost surely, 2^{605216322111361} is an apocalyptic number.

It is an amenable number.

605216322111361 is a deficient number, since it is larger than the sum of its proper divisors (1).

605216322111361 is an equidigital number, since it uses as much as digits as its factorization.

605216322111361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

Adding to 605216322111361 its reverse (163111223612506), we get a palindrome (768327545723867).

The spelling of 605216322111361 in words is "six hundred five trillion, two hundred sixteen billion, three hundred twenty-two million, one hundred eleven thousand, three hundred sixty-one".