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_25800134_1 (series__number INTEGER, airdate VARCHAR)
### Question:
What is largest series number for the episode that aired February 16, 1957?
### Answer:
SELECT MAX(series__number) FROM table_25800134_1 WHERE airdate = "February 16, 1957"