Table schema:
CREATE TABLE table_name_63 (ansi_code INTEGER, longitude VARCHAR, water__sqmi_ VARCHAR, township VARCHAR)

Question: Van Meter has a water(sqmi) of 0 and a longitude larger than -98.444062, what was their highest ANSI code?
SQL: SELECT MAX(ansi_code) FROM table_name_63 WHERE water__sqmi_ = 0 AND township = "van meter" AND longitude > -98.444062