46th Problem 2016

From the divisibility rule of $7$ , we got: $664001-2*8=663985$ Keep checking, we got $66398-2*5=66388$ $6638-2*8=6622$ $662-2*2=658$ $65-2*8=49$ Because $49$ is divisible by $7$ , so $\Rightarrow 658~is~divisible~by~7$ $\cdot\cdot\cdot$ $\Rightarrow 6640018~is~divisible~by~7$ Hence, the answer is $\boxed{False}$