108420666688 has 28 divisors (see below), whose sum is σ = 216390908340. Its totient is φ = 53896973312.

The previous prime is 108420666671. The next prime is 108420666707. The reversal of 108420666688 is 886666024801.

It can be written as a sum of positive squares in 2 ways, for example, as 99583162624 + 8837504064 = 315568^2 + 94008^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4885093 + ... + 4907236.

Almost surely, 2^108420666688 is an apocalyptic number.

It is an amenable number.

108420666688 is a deficient number, since it is larger than the sum of its proper divisors (107970241652).

108420666688 is an equidigital number, since it uses as much as digits as its factorization.

108420666688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792514 (or 9792504 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 108420666688 in words is "one hundred eight billion, four hundred twenty million, six hundred sixty-six thousand, six hundred eighty-eight".