8116722000 has 120 divisors (see below), whose sum is σ = 28349067240. Its totient is φ = 2164454400.

The previous prime is 8116721983. The next prime is 8116722001. The reversal of 8116722000 is 2276118.

It can be written as a sum of positive squares in 4 ways, for example, as 14561856 + 8102160144 = 3816^2 + 90012^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116722001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207465 + ... + 243464.

It is an arithmetic number, because the mean of its divisors is an integer number (236242227).

Almost surely, 2^8116722000 is an apocalyptic number.

8116722000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8116722000 is an abundant number, since it is smaller than the sum of its proper divisors (20232345240).

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

8116722000 is a wasteful number, since it uses less digits than its factorization.

8116722000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450958 (or 450939 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 8116722000 is about 90092.8521027057. The cubic root of 8116722000 is about 2009.6799074448.

Adding to 8116722000 its reverse (2276118), we get a palindrome (8118998118).

The spelling of 8116722000 in words is "eight billion, one hundred sixteen million, seven hundred twenty-two thousand".