16434170104021 has 2 divisors, whose sum is σ = 16434170104022. Its totient is φ = 16434170104020.

The previous prime is 16434170104013. The next prime is 16434170104039. The reversal of 16434170104021 is 12040107143461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15735422904100 + 698747199921 = 3966790^2 + 835911^2 .

It is a cyclic number.

It is not a de Polignac number, because 16434170104021 - 2³ = 16434170104013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16434170104091) 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, 8217085052010 + 8217085052011.

It is an arithmetic number, because the mean of its divisors is an integer number (8217085052011).

Almost surely, 2^{16434170104021} is an apocalyptic number.

It is an amenable number.

16434170104021 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434170104021 is an equidigital number, since it uses as much as digits as its factorization.

16434170104021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 16434170104021 its reverse (12040107143461), we get a palindrome (28474277247482).

The spelling of 16434170104021 in words is "sixteen trillion, four hundred thirty-four billion, one hundred seventy million, one hundred four thousand, twenty-one".