63335314561 has 2 divisors, whose sum is σ = 63335314562. Its totient is φ = 63335314560.

The previous prime is 63335314547. The next prime is 63335314591. The reversal of 63335314561 is 16541353336.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34579633936 + 28755680625 = 185956^2 + 169575^2 .

It is a cyclic number.

It is not a de Polignac number, because 63335314561 - 2¹⁷ = 63335183489 is a prime.

It is a super-2 number, since 2×63335314561² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63335314591) 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 as a sum of consecutive naturals, namely, 31667657280 + 31667657281.

It is an arithmetic number, because the mean of its divisors is an integer number (31667657281).

Almost surely, 2^63335314561 is an apocalyptic number.

It is an amenable number.

63335314561 is a deficient number, since it is larger than the sum of its proper divisors (1).

63335314561 is an equidigital number, since it uses as much as digits as its factorization.

63335314561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 40.

Adding to 63335314561 its reverse (16541353336), we get a palindrome (79876667897).

The spelling of 63335314561 in words is "sixty-three billion, three hundred thirty-five million, three hundred fourteen thousand, five hundred sixty-one".