201010020000161 has 2 divisors, whose sum is σ = 201010020000162. Its totient is φ = 201010020000160.

The previous prime is 201010020000157. The next prime is 201010020000233. The reversal of 201010020000161 is 161000020010102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197050142877025 + 3959877123136 = 14037455^2 + 1989944^2 .

It is a cyclic number.

It is not a de Polignac number, because 201010020000161 - 2² = 201010020000157 is a prime.

It is not a weakly prime, because it can be changed into another prime (201010020000121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505010000080 + 100505010000081.

It is an arithmetic number, because the mean of its divisors is an integer number (100505010000081).

Almost surely, 2^{201010020000161} is an apocalyptic number.

It is an amenable number.

201010020000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

201010020000161 is an equidigital number, since it uses as much as digits as its factorization.

201010020000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201010020000161 its reverse (161000020010102), we get a palindrome (362010040010263).

The spelling of 201010020000161 in words is "two hundred one trillion, ten billion, twenty million, one hundred sixty-one", and thus it is an aban number.