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_17641206_6 (duration VARCHAR, viewership VARCHAR)
### Question:
Name the number of duration for viewership of 5.46 million
### Answer:
SELECT COUNT(duration) FROM table_17641206_6 WHERE viewership = "5.46 million"