CREATE TABLE table_16588 ("#" FLOAT, "Episode" CLOB, "Air Date" CLOB, "Timeslot  ( EST ) " CLOB, "Season" CLOB, "Rating" CLOB, "Share" FLOAT, "18\\u201349" CLOB, "Viewers  ( m ) " CLOB, "Rank  ( # ) " CLOB)

What is the number of rank with the viewership of 5.96 million?
SELECT COUNT("Rank (#)") FROM table_16588 WHERE "Viewers (m)" = '5.96'
SELECT COUNT("Rank (#)") FROM "table_16588" WHERE "Viewers (m)" = '5.96'