17046640064681 has 2 divisors, whose sum is σ = 17046640064682. Its totient is φ = 17046640064680.

The previous prime is 17046640064563. The next prime is 17046640064687. The reversal of 17046640064681 is 18646004664071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11229335040400 + 5817305024281 = 3351020^2 + 2411909^2 .

It is a cyclic number.

It is not a de Polignac number, because 17046640064681 - 2³⁴ = 17029460195497 is a prime.

It is a super-2 number, since 2×17046640064681² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17046640064687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8523320032340 + 8523320032341.

It is an arithmetic number, because the mean of its divisors is an integer number (8523320032341).

Almost surely, 2^{17046640064681} is an apocalyptic number.

It is an amenable number.

17046640064681 is a deficient number, since it is larger than the sum of its proper divisors (1).

17046640064681 is an equidigital number, since it uses as much as digits as its factorization.

17046640064681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 17046640064681 in words is "seventeen trillion, forty-six billion, six hundred forty million, sixty-four thousand, six hundred eighty-one".