6817166077 has 2 divisors, whose sum is σ = 6817166078. Its totient is φ = 6817166076.

The previous prime is 6817166017. The next prime is 6817166113. The reversal of 6817166077 is 7706617186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5081693796 + 1735472281 = 71286^2 + 41659^2 .

It is a cyclic number.

It is not a de Polignac number, because 6817166077 - 2¹⁹ = 6816641789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6817166077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6817166017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408583038 + 3408583039.

It is an arithmetic number, because the mean of its divisors is an integer number (3408583039).

Almost surely, 2^6817166077 is an apocalyptic number.

It is an amenable number.

6817166077 is a deficient number, since it is larger than the sum of its proper divisors (1).

6817166077 is an equidigital number, since it uses as much as digits as its factorization.

6817166077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 6817166077 is about 82566.1315370897. The cubic root of 6817166077 is about 1896.1293386408.

The spelling of 6817166077 in words is "six billion, eight hundred seventeen million, one hundred sixty-six thousand, seventy-seven".