www.mikescher.com/www/statics/euler/Euler_Problem-069.php

<?php

return 
[
	'number'      => 69,
	'date'        => '2015-07-20',
	'title'       => 'Totient maximum',
	'abbreviated' => false,
	'steps'       => 35542,
	'time'        => 16,
	'width'       => 80,
	'height'      => 10,
	'value'       => 510510,
];