8157805106 has 16 divisors (see below), whose sum is σ = 13356111168. Its totient is φ = 3706155600.

The previous prime is 8157805099. The next prime is 8157805121. The reversal of 8157805106 is 6015087518.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53390 + ... + 138441.

It is an arithmetic number, because the mean of its divisors is an integer number (834756948).

Almost surely, 2^8157805106 is an apocalyptic number.

8157805106 is a deficient number, since it is larger than the sum of its proper divisors (5198306062).

8157805106 is a wasteful number, since it uses less digits than its factorization.

8157805106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193777.

The product of its (nonzero) digits is 67200, while the sum is 41.

The square root of 8157805106 is about 90320.5685655266. The cubic root of 8157805106 is about 2013.0648939344.

The spelling of 8157805106 in words is "eight billion, one hundred fifty-seven million, eight hundred five thousand, one hundred six".