806671161 has 6 divisors (see below), whose sum is σ = 1165191690. Its totient is φ = 537780768.

The previous prime is 806671141. The next prime is 806671193. The reversal of 806671161 is 161176608.

It can be written as a sum of positive squares in only one way, i.e., 795240000 + 11431161 = 28200^2 + 3381^2 .

It is not a de Polignac number, because 806671161 - 2¹¹ = 806669113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (806671121) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 44815056 + ... + 44815073.

It is an arithmetic number, because the mean of its divisors is an integer number (194198615).

Almost surely, 2^806671161 is an apocalyptic number.

It is an amenable number.

806671161 is a deficient number, since it is larger than the sum of its proper divisors (358520529).

806671161 is a wasteful number, since it uses less digits than its factorization.

806671161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89630135 (or 89630132 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 806671161 is about 28401.9569924328. The cubic root of 806671161 is about 930.8910260281.

The spelling of 806671161 in words is "eight hundred six million, six hundred seventy-one thousand, one hundred sixty-one".