16892303496221 has 2 divisors, whose sum is σ = 16892303496222. Its totient is φ = 16892303496220.

The previous prime is 16892303496157. The next prime is 16892303496241. The reversal of 16892303496221 is 12269430329861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11821425532900 + 5070877963321 = 3438230^2 + 2251861^2 .

It is a cyclic number.

It is not a de Polignac number, because 16892303496221 - 2⁶ = 16892303496157 is a prime.

It is a super-2 number, since 2×16892303496221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16892303496241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8446151748110 + 8446151748111.

It is an arithmetic number, because the mean of its divisors is an integer number (8446151748111).

Almost surely, 2^{16892303496221} is an apocalyptic number.

It is an amenable number.

16892303496221 is a deficient number, since it is larger than the sum of its proper divisors (1).

16892303496221 is an equidigital number, since it uses as much as digits as its factorization.

16892303496221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 16892303496221 in words is "sixteen trillion, eight hundred ninety-two billion, three hundred three million, four hundred ninety-six thousand, two hundred twenty-one".