2042165315161 has 2 divisors, whose sum is σ = 2042165315162. Its totient is φ = 2042165315160.

The previous prime is 2042165315111. The next prime is 2042165315167. The reversal of 2042165315161 is 1615135612402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1619398773136 + 422766542025 = 1272556^2 + 650205^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042165315161 - 2⁹ = 2042165314649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2042165315161.

It is not a weakly prime, because it can be changed into another prime (2042165315167) 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, 1021082657580 + 1021082657581.

It is an arithmetic number, because the mean of its divisors is an integer number (1021082657581).

Almost surely, 2^{2042165315161} is an apocalyptic number.

It is an amenable number.

2042165315161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042165315161 is an equidigital number, since it uses as much as digits as its factorization.

2042165315161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 2042165315161 in words is "two trillion, forty-two billion, one hundred sixty-five million, three hundred fifteen thousand, one hundred sixty-one".