6366161 has 2 divisors, whose sum is σ = 6366162. Its totient is φ = 6366160.

The previous prime is 6366149. The next prime is 6366163. The reversal of 6366161 is 1616636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 913936 = 2335^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 6366161 - 2²² = 2171857 is a prime.

It is a Sophie Germain prime.

Together with 6366163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6366163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3183080 + 3183081.

It is an arithmetic number, because the mean of its divisors is an integer number (3183081).

Almost surely, 2^6366161 is an apocalyptic number.

It is an amenable number.

6366161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366161 is an equidigital number, since it uses as much as digits as its factorization.

6366161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 6366161 is about 2523.1252446123. The cubic root of 6366161 is about 185.3357525893.

The spelling of 6366161 in words is "six million, three hundred sixty-six thousand, one hundred sixty-one".