Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_16570286_4 (wickets VARCHAR, average VARCHAR)
### Question:
How many wickets were there when average was 22.66?
### Answer:
SELECT wickets FROM table_16570286_4 WHERE average = "22.66"