16434221311 has 2 divisors, whose sum is σ = 16434221312. Its totient is φ = 16434221310.

The previous prime is 16434221261. The next prime is 16434221371. The reversal of 16434221311 is 11312243461.

It is a weak prime.

It is an emirp because it is prime and its reverse (11312243461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16434221311 - 2³³ = 7844286719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16434221311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16434221371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8217110655 + 8217110656.

It is an arithmetic number, because the mean of its divisors is an integer number (8217110656).

Almost surely, 2^16434221311 is an apocalyptic number.

16434221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

16434221311 is an equidigital number, since it uses as much as digits as its factorization.

16434221311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

Adding to 16434221311 its reverse (11312243461), we get a palindrome (27746464772).

The spelling of 16434221311 in words is "sixteen billion, four hundred thirty-four million, two hundred twenty-one thousand, three hundred eleven".