8204165856 has 36 divisors (see below), whose sum is σ = 23330597472. Its totient is φ = 2734721856.

The previous prime is 8204165831. The next prime is 8204165863. The reversal of 8204165856 is 6585614028.

8204165856 is a `hidden beast` number, since 8 + 20 + 41 + 6 + 585 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14243056 + ... + 14243631.

It is an arithmetic number, because the mean of its divisors is an integer number (648072152).

Almost surely, 2^8204165856 is an apocalyptic number.

It is an amenable number.

8204165856 is an abundant number, since it is smaller than the sum of its proper divisors (15126431616).

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

8204165856 is a wasteful number, since it uses less digits than its factorization.

8204165856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28486703 (or 28486692 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 8204165856 is about 90576.8505524452. The cubic root of 8204165856 is about 2016.8711040825.

The spelling of 8204165856 in words is "eight billion, two hundred four million, one hundred sixty-five thousand, eight hundred fifty-six".