What Is the Maximum Value of a Uint256 in Solidity?
The maximum value of a uint256 in Solidity is 2256 – 1. This is an extremely large number, approximately 1.15 × 1077.
The size is chosen to be large enough to prevent the vast majority of legitimate arithmetic operations from overflowing, even when dealing with large token supplies and high precision. This massive number space is a key reason why most smart contract vulnerabilities stem from underflow from zero, not overflow from the maximum.
Glossar
Uint256
Data ⎊ Uint256 is a data type representing an unsigned integer with a maximum value of 2^256 - 1.
Solidity
Contract ⎊ Solidity, within the cryptocurrency, options trading, and financial derivatives landscape, fundamentally represents a high-level programming language specifically designed for developing smart contracts on the Ethereum blockchain and other compatible platforms.
Maximum Value
Threshold ⎊ This denotes the upper boundary of a variable, such as the highest price or notional amount, that a system or contract is designed to handle or process within defined operational parameters.