The total number of particles in an object depends on the object's size, mass, and composition. In general, objects are made up of atoms, which are composed of protons, neutrons, and electrons. However, depending on the complexity of the object, there may be other subatomic particles present as well.
To give you an idea of the scale, let's consider a macroscopic object like a typical grain of sand. A grain of sand contains a huge number of atoms. Estimates suggest that a grain of sand could contain around 10^20 (a 1 followed by 20 zeros) atoms.
If we consider a smaller object like a water molecule (H2O), it consists of three atoms: two hydrogen atoms and one oxygen atom. On the other hand, larger objects like a human body or an automobile can contain trillions of trillions (10^24 or more) of atoms.
Keep in mind that the number of particles in an object can vary depending on the size, density, and composition of the object. Additionally, objects can also contain subatomic particles such as protons, neutrons, and electrons, which are themselves composed of smaller elementary particles like quarks and leptons.
In summary, the total number of particles in an object can range from billions to trillions or even more, depending on the size and composition of the object.