Odds in Super Once

It is a game formed by a matrix of 80 numbers, numbered from 1 to 80, and consists of choosing between 5 and 11 numbers from the matrix, their order being indifferent. After a drawing, a winning combination of 20 numbers out of the 80 will be obtained.
A wager consists of a combination of numbers from among those accepted in the product plus the price paid for such combination.
There are 7 types of bets depending on the number of numbers chosen, 11, 10, 9, 8, 7, 6 or 5. With these elements you will be eligible for the corresponding prizes, depending on the type of bet, the amount in euros wagered and the number of hits obtained.

The possible combinations of drawing 11 numbers out of 80 would be:

(80*79*78*77*76*75*74*73*72*71*70)/11! =10.477.677.064.400 combinaciones.

For 11 numbers the favorable cases is 1 in 62,381,978, i.e. a probability of 0.000000016