16216243273 has 2 divisors, whose sum is σ = 16216243274. Its totient is φ = 16216243272.

The previous prime is 16216243249. The next prime is 16216243333. The reversal of 16216243273 is 37234261261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9294502464 + 6921740809 = 96408^2 + 83197^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16216243273 is a prime.

It is not a weakly prime, because it can be changed into another prime (16216243073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108121636 + 8108121637.

It is an arithmetic number, because the mean of its divisors is an integer number (8108121637).

Almost surely, 2^16216243273 is an apocalyptic number.

It is an amenable number.

16216243273 is a deficient number, since it is larger than the sum of its proper divisors (1).

16216243273 is an equidigital number, since it uses as much as digits as its factorization.

16216243273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The spelling of 16216243273 in words is "sixteen billion, two hundred sixteen million, two hundred forty-three thousand, two hundred seventy-three".