The simplest way is to write a function that receives the value and returns the correct text formatted, based on a switch or series of IFs where you compare the size of number starting from the biggest size. 

Cheers

Thanks Eduardo,

I did the same, But looking for any other better option if available.

Or please correct/modify If you found anything wrong in below code:

If(Value > 1000000000000, Round( (Value/1000000000000), 2 ) + " Trillion",
    If(Value > 1000000000, Round( (Value/1000000000),2 ) + " Billion", 
        If(Value > 1000000, Round( (Value/1000000),2 ) + " Million", 
            If(Value > 1000, Round( (Value/1000),2 ) + " Thousand",
                Value
            )
        )
    )
)

Don't think there are any other way... 

And your code seems corrrect. 

Cheera

The examples I came across do exactly the same.

https://stackoverflow.com/questions/2729752/converting-numbers-in-to-words-c-sharp