8455265856 has 84 divisors (see below), whose sum is σ = 24369691164. Its totient is φ = 2802816000.

The previous prime is 8455265849. The next prime is 8455265857. The reversal of 8455265856 is 6585625548.

It is a happy number.

8455265856 is a `hidden beast` number, since 8 + 4 + 5 + 52 + 6 + 585 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2501600256 + 5953665600 = 50016^2 + 77160^2 .

It is not an unprimeable number, because it can be changed into a prime (8455265857) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 63706 + ... + 144806.

It is an arithmetic number, because the mean of its divisors is an integer number (290115371).

Almost surely, 2^8455265856 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 8455265856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12184845582).

8455265856 is an abundant number, since it is smaller than the sum of its proper divisors (15914425308).

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

8455265856 is a wasteful number, since it uses less digits than its factorization.

8455265856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81300 (or 81287 counting only the distinct ones).

The product of its digits is 11520000, while the sum is 54.

The square root of 8455265856 is about 91952.5195739627. The cubic root of 8455265856 is about 2037.2410686099.

The spelling of 8455265856 in words is "eight billion, four hundred fifty-five million, two hundred sixty-five thousand, eight hundred fifty-six".