Has an AFL game ever ended 166-32?
Exactly once. On May 14, 1955, Sydney beat St Kilda 166-32, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 166-32 in league history.
That makes 166-32 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 167-32 has happened never and 166-33 has happened never.