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_21109892_1 (rank VARCHAR, production__mt_ VARCHAR)
### Question:
When the production (mt) is 650000, what is the total number of rank?
### Answer:
SELECT COUNT(rank) FROM table_21109892_1 WHERE production__mt_ = 650000