What is the fifth square root of x^16

The fifth square root as in a^ (1/2) ^ (1/2) ^ (1/2) ^ (1/2) ^ (1/2)

Well that is equal to a^ ((1/2) ^5) or a^ (1/32)

Since a=x^16 in this case and the rule (b^a) ^c=b^ (a*c) we have:

(x^16) ^ (1/32)

x^ (16/32)

x^ (1/2) or if you prefer

√x