16355141321 has 2 divisors, whose sum is σ = 16355141322. Its totient is φ = 16355141320.

The previous prime is 16355141279. The next prime is 16355141333. The reversal of 16355141321 is 12314155361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14559076921 + 1796064400 = 120661^2 + 42380^2 .

It is a cyclic number.

It is not a de Polignac number, because 16355141321 - 2¹⁴ = 16355124937 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 (16355141351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8177570660 + 8177570661.

It is an arithmetic number, because the mean of its divisors is an integer number (8177570661).

Almost surely, 2^16355141321 is an apocalyptic number.

It is an amenable number.

16355141321 is a deficient number, since it is larger than the sum of its proper divisors (1).

16355141321 is an equidigital number, since it uses as much as digits as its factorization.

16355141321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

Adding to 16355141321 its reverse (12314155361), we get a palindrome (28669296682).

The spelling of 16355141321 in words is "sixteen billion, three hundred fifty-five million, one hundred forty-one thousand, three hundred twenty-one".