64 bit integer limit
64-bit Integer Limit in C
In C, the limit for a 64-bit integer is defined by the data type long long int. The range for a 64-bit signed integer is from -9223372036854775808 to 9223372036854775807.
The long long int data type is guaranteed to be at least 64 bits, according to the C99 standard. This means that it can represent values from -9223372036854775808 to 9223372036854775807.
In C, the long long int data type is used to represent 64-bit integers. It is guaranteed to be at least 64 bits in size, allowing it to store values within the range mentioned above.