856333546164 has 36 divisors (see below), whose sum is σ = 2164769330724. Its totient is φ = 285424943232.

The previous prime is 856333546157. The next prime is 856333546171. The reversal of 856333546164 is 461645333658.

856333546164 is a `hidden beast` number, since 8 + 5 + 6 + 3 + 33 + 546 + 1 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (856333546157) and next prime (856333546171).

It can be written as a sum of positive squares in 2 ways, for example, as 412217929764 + 444115616400 = 642042^2 + 666420^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×856333546164² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 856333546164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278337 + ... + 1337960.

It is an arithmetic number, because the mean of its divisors is an integer number (60132481409).

Almost surely, 2^856333546164 is an apocalyptic number.

It is an amenable number.

856333546164 is an abundant number, since it is smaller than the sum of its proper divisors (1308435784560).

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

856333546164 is a wasteful number, since it uses less digits than its factorization.

856333546164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631024 (or 1631019 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 856333546164 in words is "eight hundred fifty-six billion, three hundred thirty-three million, five hundred forty-six thousand, one hundred sixty-four".