Power of Two
266 = 73786976294838206464
266 = 73786976294838206464
73786976294838206464 is a perfect square (8589934592 × 8589934592)
73786976294838206464 is even
Previous even number is 73786976294838206462
Next even number is 73786976294838206466
401734511064747568885490523085290650630550748445698208825344
1000000000000000000000000000000000000000000000000000000000000000000