242023636605161 has 2 divisors, whose sum is σ = 242023636605162. Its totient is φ = 242023636605160.

The previous prime is 242023636605139. The next prime is 242023636605203. The reversal of 242023636605161 is 161506636320242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174439535493136 + 67584101112025 = 13207556^2 + 8220955^2 .

It is a cyclic number.

It is not a de Polignac number, because 242023636605161 - 2⁶ = 242023636605097 is a prime.

It is not a weakly prime, because it can be changed into another prime (242023636602161) 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, 121011818302580 + 121011818302581.

It is an arithmetic number, because the mean of its divisors is an integer number (121011818302581).

Almost surely, 2^{242023636605161} is an apocalyptic number.

It is an amenable number.

242023636605161 is a deficient number, since it is larger than the sum of its proper divisors (1).

242023636605161 is an equidigital number, since it uses as much as digits as its factorization.

242023636605161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 242023636605161 in words is "two hundred forty-two trillion, twenty-three billion, six hundred thirty-six million, six hundred five thousand, one hundred sixty-one".