CREATE TABLE table_16729930_18 (sspec_number VARCHAR(255), tdp VARCHAR(255), model_number VARCHAR(255))
For a processor with model number atom e665c and a TDP of 3.6 W, what is the sSpec number?
    
SQL: SELECT sspec_number FROM table_16729930_18 WHERE tdp = "3.6 W" AND model_number = "Atom E665C"