How many hands are these stats over?

Since the SB doesnt show much agression, I can understand the reasoning in folding to his river c/r. But since the pot is so large, I wouldnt be suprised if a donk wanted to try something and c/r'ed a busted straight draw or something random like 1 pair.

I like betting the river here given there extremely loose stats. But if these were competent players, I dont think I would.

Suppose he bets the river instead of checking, the button folds, and the SB raises. In this case, do you have odds to call?