6600161 has 2 divisors, whose sum is σ = 6600162. Its totient is φ = 6600160.

The previous prime is 6600157. The next prime is 6600169. The reversal of 6600161 is 1610066.

6600161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6599761 + 400 = 2569^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 6600161 - 2² = 6600157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₄₅₁₁₇₂ and since 6600161 and 451172 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6600169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300080 + 3300081.

It is an arithmetic number, because the mean of its divisors is an integer number (3300081).

Almost surely, 2^6600161 is an apocalyptic number.

It is an amenable number.

6600161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600161 is an equidigital number, since it uses as much as digits as its factorization.

6600161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 6600161 is about 2569.0778501244. The cubic root of 6600161 is about 187.5792707777.

The spelling of 6600161 in words is "six million, six hundred thousand, one hundred sixty-one".