0x100000000000

0x100000000000 is a hexadecimal integer constant. It denotes the value of 1 followed by eleven zeros in hex, which equals 16^11, i.e., 2^44. In decimal, this is 17,592,186,044,416. It also corresponds to 16 tebibytes (TiB) of data, since 1 TiB equals 2^40 bytes, and 2^44 bytes equal 16 × 2^40 bytes.

As a power-of-two boundary, 0x100000000000 is used in computing to mark a boundary, size, or offset. Its place in 64-bit systems makes it a natural large limit or cap in documentation or code that relies on binary-aligned sizes. For example, it can represent a 16 TiB interval or partition size in some storage configurations, though exact usage varies by system.

In hexadecimal notation, such constants are common for expressing large sizes and memory addresses, because powers of two map cleanly to bit boundaries. 0x100000000000 stands out as one of the higher-order hex powers that still fits comfortably within 64-bit arithmetic.