8256320000 has 100 divisors (see below), whose sum is σ = 20614843326. Its totient is φ = 3302400000.

The previous prime is 8256319991. The next prime is 8256320057. The reversal of 8256320000 is 236528.

It can be written as a sum of positive squares in 5 ways, for example, as 115949824 + 8140370176 = 10768^2 + 90224^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 307100 + ... + 332900.

Almost surely, 2^8256320000 is an apocalyptic number.

8256320000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8256320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10307421663).

8256320000 is an abundant number, since it is smaller than the sum of its proper divisors (12358523326).

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

8256320000 is an frugal number, since it uses more digits than its factorization.

8256320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25839 (or 25808 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8256320000 is about 90864.2944175544. The cubic root of 8256320000 is about 2021.1358510750.

Adding to 8256320000 its reverse (236528), we get a palindrome (8256556528).

The spelling of 8256320000 in words is "eight billion, two hundred fifty-six million, three hundred twenty thousand".