8163122500 has 135 divisors (see below), whose sum is σ = 19469971521. Its totient is φ = 2992392000.

The previous prime is 8163122417. The next prime is 8163122503. The reversal of 8163122500 is 52213618.

The square root of 8163122500 is 90350.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 8062962436 + 100160064 = 89794^2 + 10008^2 .

It is not an unprimeable number, because it can be changed into a prime (8163122503) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58727431 + ... + 58727569.

Almost surely, 2^8163122500 is an apocalyptic number.

8163122500 is the 90350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8163122500

8163122500 is an abundant number, since it is smaller than the sum of its proper divisors (11306849021).

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

8163122500 is a wasteful number, since it uses less digits than its factorization.

8163122500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The cubic root of 8163122500 is about 2013.5021820756.

The spelling of 8163122500 in words is "eight billion, one hundred sixty-three million, one hundred twenty-two thousand, five hundred".