How many u.s. viewers (million) have 6 as the #?
CREATE TABLE table_2866456_1 (
    us_viewers__million_ VARCHAR,
    _number VARCHAR
)
SELECT us_viewers__million_ FROM table_2866456_1 WHERE _number = 6
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many u.s. viewers (million) have 6 as the #? ### Input: CREATE TABLE table_2866456_1 (
    us_viewers__million_ VARCHAR,
    _number VARCHAR
) ### Response: SELECT us_viewers__million_ FROM table_2866456_1 WHERE _number = 6