16323355331849 has 2 divisors, whose sum is σ = 16323355331850. Its totient is φ = 16323355331848.

The previous prime is 16323355331737. The next prime is 16323355331861. The reversal of 16323355331849 is 94813355332361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13683104068624 + 2640251263225 = 3699068^2 + 1624885^2 .

It is a cyclic number.

It is not a de Polignac number, because 16323355331849 - 2¹² = 16323355327753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16323355331794 and 16323355331803.

It is not a weakly prime, because it can be changed into another prime (16323355331249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161677665924 + 8161677665925.

It is an arithmetic number, because the mean of its divisors is an integer number (8161677665925).

Almost surely, 2^{16323355331849} is an apocalyptic number.

It is an amenable number.

16323355331849 is a deficient number, since it is larger than the sum of its proper divisors (1).

16323355331849 is an equidigital number, since it uses as much as digits as its factorization.

16323355331849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20995200, while the sum is 56.

The spelling of 16323355331849 in words is "sixteen trillion, three hundred twenty-three billion, three hundred fifty-five million, three hundred thirty-one thousand, eight hundred forty-nine".