16363247617 has 2 divisors, whose sum is σ = 16363247618. Its totient is φ = 16363247616.

The previous prime is 16363247611. The next prime is 16363247639. The reversal of 16363247617 is 71674236361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15735444481 + 627803136 = 125441^2 + 25056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16363247617 is a prime.

It is not a weakly prime, because it can be changed into another prime (16363247611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8181623808 + 8181623809.

It is an arithmetic number, because the mean of its divisors is an integer number (8181623809).

Almost surely, 2^16363247617 is an apocalyptic number.

It is an amenable number.

16363247617 is a deficient number, since it is larger than the sum of its proper divisors (1).

16363247617 is an equidigital number, since it uses as much as digits as its factorization.

16363247617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The spelling of 16363247617 in words is "sixteen billion, three hundred sixty-three million, two hundred forty-seven thousand, six hundred seventeen".