855163008 has 160 divisors (see below), whose sum is σ = 2908762560. Its totient is φ = 244311552.

The previous prime is 855162989. The next prime is 855163063. The reversal of 855163008 is 800361558.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66685 + ... + 78467.

It is an arithmetic number, because the mean of its divisors is an integer number (18179766).

Almost surely, 2^855163008 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 855163008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454381280).

855163008 is an abundant number, since it is smaller than the sum of its proper divisors (2053599552).

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

855163008 is a wasteful number, since it uses less digits than its factorization.

855163008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11816 (or 11795 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 855163008 is about 29243.1702795713. The cubic root of 855163008 is about 949.1823095055.

The spelling of 855163008 in words is "eight hundred fifty-five million, one hundred sixty-three thousand, eight".