865337250960 has 480 divisors, whose sum is σ = 3764981525760. Its totient is φ = 172967104512.

The previous prime is 865337250929. The next prime is 865337250971. The reversal of 865337250960 is 69052733568.

It is a happy number.

865337250960 is a `hidden beast` number, since 8 + 6 + 5 + 3 + 3 + 72 + 509 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 865337250897 and 865337250906.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 897322 + ... + 1592438.

It is an arithmetic number, because the mean of its divisors is an integer number (7843711512).

Almost surely, 2^865337250960 is an apocalyptic number.

865337250960 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 865337250960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1882490762880).

865337250960 is an abundant number, since it is smaller than the sum of its proper divisors (2899644274800).

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

865337250960 is a wasteful number, since it uses less digits than its factorization.

865337250960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695175 (or 695166 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 865337250960 in words is "eight hundred sixty-five billion, three hundred thirty-seven million, two hundred fifty thousand, nine hundred sixty".