Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
what is the total viewers (m) when the rating is 6.4 and the share is more than 11?

### Inputs:
table_name: table, columns: ['Episode', 'Air date', 'Rating', 'Share', '18-49 (Rating/Share)', 'Viewers (m)', 'Rank (timeslot)']

### Response:
SELECT COUNT Viewers (m) FROM table WHERE Rating = 6.4 AND Share > 11