16424110621 has 2 divisors, whose sum is σ = 16424110622. Its totient is φ = 16424110620.

The previous prime is 16424110609. The next prime is 16424110649. The reversal of 16424110621 is 12601142461.

16424110621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (16424110649) can be obtained adding 16424110621 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10647350596 + 5776760025 = 103186^2 + 76005^2 .

It is a cyclic number.

It is not a de Polignac number, because 16424110621 - 2¹⁷ = 16423979549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16424110621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16424110121) 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, 8212055310 + 8212055311.

It is an arithmetic number, because the mean of its divisors is an integer number (8212055311).

Almost surely, 2^16424110621 is an apocalyptic number.

It is an amenable number.

16424110621 is a deficient number, since it is larger than the sum of its proper divisors (1).

16424110621 is an equidigital number, since it uses as much as digits as its factorization.

16424110621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 16424110621 in words is "sixteen billion, four hundred twenty-four million, one hundred ten thousand, six hundred twenty-one".