Final Answer: The Spanish word for the number 66 is sesenta y seis , which combines the words for 60 and 6. This is how numbers are typically formed in the Spanish language. ; Explanation: The Spanish word for the number 66 is sesenta y seis . In Spanish, numbers are typically formed by combining the tens and units in a straightforward manner. Here's how it breaks down: The word for 60 is sesenta . The word for 6 is seis . So when you combine them, you get sesenta y seis , which literally translates to 60 and 6. This method of naming numbers is standard in Spanish and applies to other numbers as well. ; Examples & Evidence: For example, 67 would be sesenta y siete (60 and 7), and 68 would be sesenta y ocho (60 and 8). This pattern continues for other numbers as well. The information about Spanish numbers, including how to construct them, is widely accepted and can be found in standard Spanish language learning resources. Answer from mikekeller on brainly.com