def METHOD_NAME(self, number):
    if number >= self.max_num:
        raise OverflowError(self.errmsg_toobig % (number, self.max_num))
    minus = ''
    if number < 0:
        minus = 'min '
    float_word = ''
    n = self.split_by_koma(abs(number))
    if len(n) == 2:
        float_word = self.spell_float(n[1])
    return minus + self.join(self.spell(self.split_by_3(n[0])), float_word)