8216625888 has 144 divisors (see below), whose sum is σ = 24233803776. Its totient is φ = 2637999360.

The previous prime is 8216625847. The next prime is 8216625931. The reversal of 8216625888 is 8885266128.

It is a happy number.

8216625888 is a `hidden beast` number, since 8 + 2 + 1 + 6 + 625 + 8 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1988881 + ... + 1993007.

It is an arithmetic number, because the mean of its divisors is an integer number (168290304).

Almost surely, 2^8216625888 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 8216625888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12116901888).

8216625888 is an abundant number, since it is smaller than the sum of its proper divisors (16017177888).

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

8216625888 is a wasteful number, since it uses less digits than its factorization.

8216625888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397 (or 4386 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The square root of 8216625888 is about 90645.6060049245. The cubic root of 8216625888 is about 2017.8916249375.

The spelling of 8216625888 in words is "eight billion, two hundred sixteen million, six hundred twenty-five thousand, eight hundred eighty-eight".