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_20745685_1 (opponent VARCHAR, attendance VARCHAR)
### Question:
Who was the opponent when the attendance was exactly 16642?
### Answer:
SELECT opponent FROM table_20745685_1 WHERE attendance = 16642