8166826573 has 2 divisors, whose sum is σ = 8166826574. Its totient is φ = 8166826572.

The previous prime is 8166826559. The next prime is 8166826631. The reversal of 8166826573 is 3756286618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7234012809 + 932813764 = 85053^2 + 30542^2 .

It is a cyclic number.

It is not a de Polignac number, because 8166826573 - 2⁵ = 8166826541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8166826573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8166826523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083413286 + 4083413287.

It is an arithmetic number, because the mean of its divisors is an integer number (4083413287).

Almost surely, 2^8166826573 is an apocalyptic number.

It is an amenable number.

8166826573 is a deficient number, since it is larger than the sum of its proper divisors (1).

8166826573 is an equidigital number, since it uses as much as digits as its factorization.

8166826573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 52.

The square root of 8166826573 is about 90370.4961422698. The cubic root of 8166826573 is about 2013.8066828467.

It can be divided in two parts, 81668 and 26573, that added together give a square (108241 = 329²).

The spelling of 8166826573 in words is "eight billion, one hundred sixty-six million, eight hundred twenty-six thousand, five hundred seventy-three".