sesenta y seis
Seisenta y cuatro
sixty-six = sesenta y seis
sesenta in spanish is sixty
The question has provided the correct answer, you spell 60 as sixty.
Sixty-three
sixty-six
Sixty nine.
The Greek word for "Sixty" is "εξήντα".
64 or sixty-four
sixty two
61 is spelled out, sixty-one.
soixante