2 is being multiplied 6 times meaning it would be 2 to the 6th power.
an event with a probability of 0 is impossible.
an event with a probability of 1 is certain.
probability is typically expressed in terms of a fraction between 0 and 1 where the denominator is the total number of outcomes and the numerator is the number of desired outcomes. since probability is expressed as a fraction, if the probability is 0, that means it is impossible, or there is no chance that the event can happen. however, if the probability is 1, that means that the event is certain to happen and the odds are completely in your favor that the event will happen.