Il numero romano MMMMCLXV nel sistema decimale vale: 4165.
MMMMCLXV in latino si scrive quattuor milia centum sexaginta quinque,
mentre in italiano quattromilacentosessantacinque.
MMMMCXLVI, MMMMCXLVII, MMMMCXLVIII, MMMMCXLIX, MMMMCL, MMMMCLI, MMMMCLII, MMMMCLIII, MMMMCLIV, MMMMCLV, MMMMCLVI, MMMMCLVII, MMMMCLVIII, MMMMCLIX, MMMMCLX, MMMMCLXI, MMMMCLXII, MMMMCLXIII, MMMMCLXIV, MMMMCLXVI, MMMMCLXVII, MMMMCLXVIII, MMMMCLXIX, MMMMCLXX, MMMMCLXXI, MMMMCLXXII, MMMMCLXXIII, MMMMCLXXIV, MMMMCLXXV, MMMMCLXXVI, MMMMCLXXVII, MMMMCLXXVIII, MMMMCLXXIX, MMMMCLXXX, MMMMCLXXXI, MMMMCLXXXII, MMMMCLXXXIII, MMMMCLXXXIV