Answer:
64
Step-by-step explanation:
For a set of [tex]x[/tex] elements, there are [tex]2^x[/tex] subsets, including a full and empty subset.
In the set [tex]\displaystyle \{1, 2, 3, 4, 5, 6\}[/tex], there are 6 elements and therefore [tex]2^6=\boxed{64}[/tex] subsets