8120108736 has 210 divisors, whose sum is σ = 25409949180. Its totient is φ = 2563653888.

The previous prime is 8120108707. The next prime is 8120108741. The reversal of 8120108736 is 6378010218.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8120108736.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1869255 + ... + 1873593.

It is an arithmetic number, because the mean of its divisors is an integer number (120999758).

Almost surely, 2^8120108736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8120108736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12704974590).

8120108736 is an abundant number, since it is smaller than the sum of its proper divisors (17289840444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8120108736 is a wasteful number, since it uses less digits than its factorization.

8120108736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8120108736 is about 90111.6459510090. The cubic root of 8120108736 is about 2009.9593843430.

The spelling of 8120108736 in words is "eight billion, one hundred twenty million, one hundred eight thousand, seven hundred thirty-six".