8065913856 has 704 divisors, whose sum is σ = 30020745216. Its totient is φ = 1857945600.

The previous prime is 8065913851. The next prime is 8065913873. The reversal of 8065913856 is 6583195608.

It is a tau number, because it is divible by the number of its divisors (704).

It is a junction number, because it is equal to n+sod(n) for n = 8065913799 and 8065913808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8065913851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 132228066 + ... + 132228126.

It is an arithmetic number, because the mean of its divisors is an integer number (42643104).

Almost surely, 2^8065913856 is an apocalyptic number.

8065913856 is a gapful number since it is divisible by the number (86) 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 8065913856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15010372608).

8065913856 is an abundant number, since it is smaller than the sum of its proper divisors (21954831360).

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

8065913856 is a wasteful number, since it uses less digits than its factorization.

8065913856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 8065913856 is about 89810.4328906169. The cubic root of 8065913856 is about 2005.4778044650.

The spelling of 8065913856 in words is "eight billion, sixty-five million, nine hundred thirteen thousand, eight hundred fifty-six".