Il numero romano CCLXIV nel sistema decimale vale: 264.
CCLXIV in latino si scrive ducenti sexaginta quattuor,
mentre in italiano duecentosessantaquattro.
CCXLV, CCXLVI, CCXLVII, CCXLVIII, CCXLIX, CCL, CCLI, CCLII, CCLIII, CCLIV, CCLV, CCLVI, CCLVII, CCLVIII, CCLIX, CCLX, CCLXI, CCLXII, CCLXIII, CCLXV, CCLXVI, CCLXVII, CCLXVIII, CCLXIX, CCLXX, CCLXXI, CCLXXII, CCLXXIII, CCLXXIV, CCLXXV, CCLXXVI, CCLXXVII, CCLXXVIII, CCLXXIX, CCLXXX, CCLXXXI, CCLXXXII, CCLXXXIII