16212416393 has 2 divisors, whose sum is σ = 16212416394. Its totient is φ = 16212416392.

The previous prime is 16212416369. The next prime is 16212416399. The reversal of 16212416393 is 39361421261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16006551289 + 205865104 = 126517^2 + 14348^2 .

It is a cyclic number.

It is not a de Polignac number, because 16212416393 - 2¹⁰ = 16212415369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16212416399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8106208196 + 8106208197.

It is an arithmetic number, because the mean of its divisors is an integer number (8106208197).

Almost surely, 2^16212416393 is an apocalyptic number.

It is an amenable number.

16212416393 is a deficient number, since it is larger than the sum of its proper divisors (1).

16212416393 is an equidigital number, since it uses as much as digits as its factorization.

16212416393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The spelling of 16212416393 in words is "sixteen billion, two hundred twelve million, four hundred sixteen thousand, three hundred ninety-three".