Il numero romano MMDCLXIV nel sistema decimale vale: 2664.
MMDCLXIV in latino si scrive duo milia sescenti sexaginta quattuor,
mentre in italiano duemilaseicentosessantaquattro.
MMDCXLV, MMDCXLVI, MMDCXLVII, MMDCXLVIII, MMDCXLIX, MMDCL, MMDCLI, MMDCLII, MMDCLIII, MMDCLIV, MMDCLV, MMDCLVI, MMDCLVII, MMDCLVIII, MMDCLIX, MMDCLX, MMDCLXI, MMDCLXII, MMDCLXIII, MMDCLXV, MMDCLXVI, MMDCLXVII, MMDCLXVIII, MMDCLXIX, MMDCLXX, MMDCLXXI, MMDCLXXII, MMDCLXXIII, MMDCLXXIV, MMDCLXXV, MMDCLXXVI, MMDCLXXVII, MMDCLXXVIII, MMDCLXXIX, MMDCLXXX, MMDCLXXXI, MMDCLXXXII, MMDCLXXXIII