434421442232161 has 2 divisors, whose sum is σ = 434421442232162. Its totient is φ = 434421442232160.

The previous prime is 434421442232069. The next prime is 434421442232249. The reversal of 434421442232161 is 161232244124434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224825433872400 + 209596008359761 = 14994180^2 + 14477431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434421442232161 is a prime.

It is not a weakly prime, because it can be changed into another prime (434421442232461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217210721116080 + 217210721116081.

It is an arithmetic number, because the mean of its divisors is an integer number (217210721116081).

Almost surely, 2^{434421442232161} is an apocalyptic number.

It is an amenable number.

434421442232161 is a deficient number, since it is larger than the sum of its proper divisors (1).

434421442232161 is an equidigital number, since it uses as much as digits as its factorization.

434421442232161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 43.

Adding to 434421442232161 its reverse (161232244124434), we get a palindrome (595653686356595).

The spelling of 434421442232161 in words is "four hundred thirty-four trillion, four hundred twenty-one billion, four hundred forty-two million, two hundred thirty-two thousand, one hundred sixty-one".