Number to Words
Convert any integer (up to quintillions) to its English word representation. Supports cardinal numbers (one hundred twenty three), ordinal (one hundred twenty third), and formatted currency (one hundred twenty-three dollars and forty-five cents). Useful for checks, invoices, legal documents, and accessibility.
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What is the largest number supported?
Up to 999 quintillion (999,999,999,999,999,999,999). Larger numbers exceed JavaScript safe integer range.
Does it support negative numbers?
Yes — negative numbers are prefixed with "negative".
What about decimals?
Decimal portions are read as separate digits (e.g., 3.14 → "three point one four"). Use the currency mode for cents.