8158560256 has 240 divisors, whose sum is σ = 21138647040. Its totient is φ = 3055288320.

The previous prime is 8158560251. The next prime is 8158560301. The reversal of 8158560256 is 6520658518.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8158560251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36585361 + ... + 36585583.

It is an arithmetic number, because the mean of its divisors is an integer number (88077696).

Almost surely, 2^8158560256 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 8158560256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10569323520).

8158560256 is an abundant number, since it is smaller than the sum of its proper divisors (12980086784).

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

8158560256 is a wasteful number, since it uses less digits than its factorization.

8158560256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 8158560256 is about 90324.7488565565. The cubic root of 8158560256 is about 2013.1270070082.

The spelling of 8158560256 in words is "eight billion, one hundred fifty-eight million, five hundred sixty thousand, two hundred fifty-six".