6201660161 has 2 divisors, whose sum is σ = 6201660162. Its totient is φ = 6201660160.

The previous prime is 6201660149. The next prime is 6201660167. The reversal of 6201660161 is 1610661026.

6201660161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6092583025 + 109077136 = 78055^2 + 10444^2 .

It is a cyclic number.

It is not a de Polignac number, because 6201660161 - 2¹⁰ = 6201659137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6201660167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100830080 + 3100830081.

It is an arithmetic number, because the mean of its divisors is an integer number (3100830081).

Almost surely, 2^6201660161 is an apocalyptic number.

It is an amenable number.

6201660161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6201660161 is an equidigital number, since it uses as much as digits as its factorization.

6201660161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 6201660161 is about 78750.6200674001. The cubic root of 6201660161 is about 1837.2545066759.

The spelling of 6201660161 in words is "six billion, two hundred one million, six hundred sixty thousand, one hundred sixty-one".