63316356617 has 2 divisors, whose sum is σ = 63316356618. Its totient is φ = 63316356616.

The previous prime is 63316356583. The next prime is 63316356629. The reversal of 63316356617 is 71665361336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58728190921 + 4588165696 = 242339^2 + 67736^2 .

It is a cyclic number.

It is not a de Polignac number, because 63316356617 - 2²⁴ = 63299579401 is a prime.

It is a super-2 number, since 2×63316356617² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63316355617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31658178308 + 31658178309.

It is an arithmetic number, because the mean of its divisors is an integer number (31658178309).

Almost surely, 2^63316356617 is an apocalyptic number.

It is an amenable number.

63316356617 is a deficient number, since it is larger than the sum of its proper divisors (1).

63316356617 is an equidigital number, since it uses as much as digits as its factorization.

63316356617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 47.

The spelling of 63316356617 in words is "sixty-three billion, three hundred sixteen million, three hundred fifty-six thousand, six hundred seventeen".