Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_15681686_4 (rank__timeslot_ VARCHAR, rank__week_ VARCHAR)

### Question ###
what is the total rank where the rank is 58?

### Accurate SQL ###

SELECT COUNT(rank__timeslot_) FROM table_15681686_4 WHERE rank__week_ = "58"