8216806158 has 128 divisors (see below), whose sum is σ = 21026304000. Its totient is φ = 2352330720.

The previous prime is 8216806121. The next prime is 8216806181. The reversal of 8216806158 is 8516086128.

8216806158 is a `hidden beast` number, since 8 + 21 + 6 + 8 + 0 + 615 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5269783 + ... + 5271341.

It is an arithmetic number, because the mean of its divisors is an integer number (164268000).

Almost surely, 2^8216806158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8216806158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10513152000).

8216806158 is an abundant number, since it is smaller than the sum of its proper divisors (12809497842).

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

8216806158 is a wasteful number, since it uses less digits than its factorization.

8216806158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2061 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 8216806158 is about 90646.6003664782. The cubic root of 8216806158 is about 2017.9063821168.

The spelling of 8216806158 in words is "eight billion, two hundred sixteen million, eight hundred six thousand, one hundred fifty-eight".