var number = 123456
var text = number.ToText("en");

var number = 123456;
var text = number.ToText(Language.English);

var number = 123456.78
var moneyText = number.ToText("usd", "en");

var number = 123456.78;
var moneyText = number.ToText(Nut.Currency.USD, Nut.Language.English);

var number = 123456.78;
var options = new Nut.Options {
	MainUnitNotConvertedToText = true,
	SubUnitNotConvertedToText = true,
	MainUnitFirstCharUpper = true,
	SubUnitFirstCharUpper = true,
	CurrencyFirstCharUpper = true,
	SubUnitZeroNotDisplayed = true
}
var moneyText = number.ToText(Nut.Currency.USD, Nut.Language.English, options);