858105066 has 32 divisors (see below), whose sum is σ = 2112259968. Its totient is φ = 226313280.

The previous prime is 858105043. The next prime is 858105067. The reversal of 858105066 is 660501858.

858105066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×858105066³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (858105067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785265 + ... + 786356.

It is an arithmetic number, because the mean of its divisors is an integer number (66008124).

Almost surely, 2^858105066 is an apocalyptic number.

858105066 is an abundant number, since it is smaller than the sum of its proper divisors (1254154902).

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

858105066 is a wasteful number, since it uses less digits than its factorization.

858105066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571646.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 858105066 is about 29293.4304239022. The cubic root of 858105066 is about 950.2695692993.

The spelling of 858105066 in words is "eight hundred fifty-eight million, one hundred five thousand, sixty-six".