1.524157875019052e+18 easy bruh
100000 x 123456789 = 12345678900000
123456789 x 16 = 1975308624
45 x 123456789 = 5555555505
2 x 123456789 = 246913578
12+123456789=123456801
1,111,111,101
123,456,789 = 1.23456789 x 108
123456789 + 123456789 = 246913578
123,455,555,443,211 so ya
the answer is 15241578750190521
15,241,578,750,190,521
you get cheese