423535604161 has 2 divisors, whose sum is σ = 423535604162. Its totient is φ = 423535604160.

The previous prime is 423535604131. The next prime is 423535604213. The reversal of 423535604161 is 161406535324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325515891600 + 98019712561 = 570540^2 + 313081^2 .

It is a cyclic number.

It is not a de Polignac number, because 423535604161 - 2¹⁷ = 423535473089 is a prime.

It is not a weakly prime, because it can be changed into another prime (423535604111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211767802080 + 211767802081.

It is an arithmetic number, because the mean of its divisors is an integer number (211767802081).

Almost surely, 2^423535604161 is an apocalyptic number.

It is an amenable number.

423535604161 is a deficient number, since it is larger than the sum of its proper divisors (1).

423535604161 is an equidigital number, since it uses as much as digits as its factorization.

423535604161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 423535604161 in words is "four hundred twenty-three billion, five hundred thirty-five million, six hundred four thousand, one hundred sixty-one".