808216075169 has 2 divisors, whose sum is σ = 808216075170. Its totient is φ = 808216075168.

The previous prime is 808216075063. The next prime is 808216075217. The reversal of 808216075169 is 961570612808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513785036944 + 294431038225 = 716788^2 + 542615^2 .

It is a cyclic number.

It is not a de Polignac number, because 808216075169 - 2³⁶ = 739496598433 is a prime.

It is a super-2 number, since 2×808216075169² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 808216075169.

It is not a weakly prime, because it can be changed into another prime (808216005169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404108037584 + 404108037585.

It is an arithmetic number, because the mean of its divisors is an integer number (404108037585).

Almost surely, 2^808216075169 is an apocalyptic number.

It is an amenable number.

808216075169 is a deficient number, since it is larger than the sum of its proper divisors (1).

808216075169 is an equidigital number, since it uses as much as digits as its factorization.

808216075169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 808216075169 in words is "eight hundred eight billion, two hundred sixteen million, seventy-five thousand, one hundred sixty-nine".