8071722138216 has 128 divisors (see below), whose sum is σ = 22974466544640. Its totient is φ = 2339267251200.

The previous prime is 8071722138211. The next prime is 8071722138247. The reversal of 8071722138216 is 6128312271708.

It is not an unprimeable number, because it can be changed into a prime (8071722138211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40418851 + ... + 40618061.

It is an arithmetic number, because the mean of its divisors is an integer number (179488019880).

Almost surely, 2^{8071722138216} 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 8071722138216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11487233272320).

8071722138216 is an abundant number, since it is smaller than the sum of its proper divisors (14902744406424).

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

8071722138216 is a wasteful number, since it uses less digits than its factorization.

8071722138216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205927 (or 205923 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 8071722138216 in words is "eight trillion, seventy-one billion, seven hundred twenty-two million, one hundred thirty-eight thousand, two hundred sixteen".