多くの値と等しくない上のmysql構文

<>の代わりに 、NOT IN (5616,1095...)を使用できます

SELECT * 
FROM wp_posts AS p 
WHERE post_type = 'post' 
AND post_status = 'publish'
AND ID NOT IN (5616,1095,1357,271,2784,902)
ORDER BY post_title DESC