17104350661 has 2 divisors, whose sum is σ = 17104350662. Its totient is φ = 17104350660.

The previous prime is 17104350643. The next prime is 17104350701. The reversal of 17104350661 is 16605340171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16086102561 + 1018248100 = 126831^2 + 31910^2 .

It is a cyclic number.

It is not a de Polignac number, because 17104350661 - 2⁹ = 17104350149 is a prime.

It is a super-2 number, since 2×17104350661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17104350631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8552175330 + 8552175331.

It is an arithmetic number, because the mean of its divisors is an integer number (8552175331).

Almost surely, 2^17104350661 is an apocalyptic number.

It is an amenable number.

17104350661 is a deficient number, since it is larger than the sum of its proper divisors (1).

17104350661 is an equidigital number, since it uses as much as digits as its factorization.

17104350661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 17104350661 in words is "seventeen billion, one hundred four million, three hundred fifty thousand, six hundred sixty-one".