To determine the product of these numbers, we can first convert the mixed numbers into improper fractions:

3,6 = 3 + 6/10 = 3 + 3/5 = 18/5

1 13/15 = 1 + 13/15 = 15/15 + 13/15 = 28/15

0,3 = 3/10

4 1/5 = 4 + 1/5 = 20/5 + 1/5 = 21/5

Now we can multiply all the numbers together:

(18/5) (28/15) (3/10) (21/5) 0,16

= (18 28 3 21) / (5 15 10 5) * 0.16

= 31752 / 37500 * 0.16

= 0.13528

Therefore, the product of these numbers is 0.13528.