8817145556 has 12 divisors (see below), whose sum is σ = 15509954292. Its totient is φ = 4385730048.

The previous prime is 8817145549. The next prime is 8817145573. The reversal of 8817145556 is 6555417188.

8817145556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1682640400 + 7134505156 = 41020^2 + 84466^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5709815 + ... + 5711358.

It is an arithmetic number, because the mean of its divisors is an integer number (1292496191).

Almost surely, 2^8817145556 is an apocalyptic number.

It is an amenable number.

8817145556 is a deficient number, since it is larger than the sum of its proper divisors (6692808736).

8817145556 is a wasteful number, since it uses less digits than its factorization.

8817145556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421370 (or 11421368 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 50.

The square root of 8817145556 is about 93899.6568470833. The cubic root of 8817145556 is about 2065.9001956306.

The spelling of 8817145556 in words is "eight billion, eight hundred seventeen million, one hundred forty-five thousand, five hundred fifty-six".