8125755216 has 80 divisors (see below), whose sum is σ = 21689088000. Its totient is φ = 2618743680.

The previous prime is 8125755199. The next prime is 8125755221. The reversal of 8125755216 is 6125575218.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2228691 + ... + 2232333.

It is an arithmetic number, because the mean of its divisors is an integer number (271113600).

Almost surely, 2^8125755216 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 8125755216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10844544000).

8125755216 is an abundant number, since it is smaller than the sum of its proper divisors (13563332784).

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

8125755216 is a wasteful number, since it uses less digits than its factorization.

8125755216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5178 counting only the distinct ones).

The product of its digits is 168000, while the sum is 42.

The square root of 8125755216 is about 90142.9709738924. The cubic root of 8125755216 is about 2010.4251648812.

The spelling of 8125755216 in words is "eight billion, one hundred twenty-five million, seven hundred fifty-five thousand, two hundred sixteen".