8116447572 has 72 divisors (see below), whose sum is σ = 21029299200. Its totient is φ = 2638597248.

The previous prime is 8116447571. The next prime is 8116447601. The reversal of 8116447572 is 2757446118.

8116447572 is a `hidden beast` number, since 8 + 11 + 64 + 4 + 7 + 572 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8116447571) 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, 254704 + ... + 284792.

It is an arithmetic number, because the mean of its divisors is an integer number (292073600).

Almost surely, 2^8116447572 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 8116447572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10514649600).

8116447572 is an abundant number, since it is smaller than the sum of its proper divisors (12912851628).

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

8116447572 is a wasteful number, since it uses less digits than its factorization.

8116447572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30285 (or 30280 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 8116447572 is about 90091.3290611255. The cubic root of 8116447572 is about 2009.6572579625.

The spelling of 8116447572 in words is "eight billion, one hundred sixteen million, four hundred forty-seven thousand, five hundred seventy-two".