Il numero romano MCCLXIV nel sistema decimale vale: 1264.
MCCLXIV in latino si scrive mille ducenti sexaginta quattuor,
mentre in italiano milleduecentosessantaquattro.
MCCXLV, MCCXLVI, MCCXLVII, MCCXLVIII, MCCXLIX, MCCL, MCCLI, MCCLII, MCCLIII, MCCLIV, MCCLV, MCCLVI, MCCLVII, MCCLVIII, MCCLIX, MCCLX, MCCLXI, MCCLXII, MCCLXIII, MCCLXV, MCCLXVI, MCCLXVII, MCCLXVIII, MCCLXIX, MCCLXX, MCCLXXI, MCCLXXII, MCCLXXIII, MCCLXXIV, MCCLXXV, MCCLXXVI, MCCLXXVII, MCCLXXVIII, MCCLXXIX, MCCLXXX, MCCLXXXI, MCCLXXXII, MCCLXXXIII