Yes, but it’s all about the range of voltage that the analogue input can accept, and I’m fairly sure that will be 0 - 3.3 V.
That’s a bad idea! But did you mean only the c.t? If that’s the case and you are measuring only current (not power), it makes no difference.
The burden value is not critical for it working - if you keep the test current below 65 A with the 33 Ω burden, there is no need to worry.
You can calculate that for yourself: P = V2 ÷ R, so with a maximum of 3.3 V anywhere in your circuit, 0.1 W resistors are OK above 110 Ω, or 220 Ω to have a 100% safety margin (recommended). But 0.1 W is even OK for your burden, because it will not see more than 1.1 V. So ¼ W or 0.3 W will be fine everywhere, and easier to find.