8155173312 has 672 divisors, whose sum is σ = 30133259520. Its totient is φ = 2149908480.

The previous prime is 8155173287. The next prime is 8155173349. The reversal of 8155173312 is 2133715518.

It is a happy number.

8155173312 is a `hidden beast` number, since 8 + 1 + 551 + 73 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42254688 + ... + 42254880.

It is an arithmetic number, because the mean of its divisors is an integer number (44841160).

Almost surely, 2^8155173312 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 8155173312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15066629760).

8155173312 is an abundant number, since it is smaller than the sum of its proper divisors (21978086208).

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

8155173312 is a wasteful number, since it uses less digits than its factorization.

8155173312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 241 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 8155173312 is about 90305.9982060992. The cubic root of 8155173312 is about 2012.8483919926.

The spelling of 8155173312 in words is "eight billion, one hundred fifty-five million, one hundred seventy-three thousand, three hundred twelve".