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layout: stdlib-reference
---

# IInteger\.toUInt64

## Description

Converts the value of the current instance to an <span class='code'>uint64_t</span>.



## Signature 

<pre>
uint64_t <a href="index.html" class="code_type">IInteger</a>.<a href="touint64-23.html">toUInt64</a>();

</pre>

## Return value
The converted <span class='code'>uint64_t</span> value.