16316331433 has 2 divisors, whose sum is σ = 16316331434. Its totient is φ = 16316331432.

The previous prime is 16316331431. The next prime is 16316331443. The reversal of 16316331433 is 33413361361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14552079424 + 1764252009 = 120632^2 + 42003^2 .

It is a cyclic number.

It is not a de Polignac number, because 16316331433 - 2¹ = 16316331431 is a prime.

Together with 16316331431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16316331431) 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, 8158165716 + 8158165717.

It is an arithmetic number, because the mean of its divisors is an integer number (8158165717).

Almost surely, 2^16316331433 is an apocalyptic number.

It is an amenable number.

16316331433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16316331433 is an equidigital number, since it uses as much as digits as its factorization.

16316331433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 34.

Adding to 16316331433 its reverse (33413361361), we get a palindrome (49729692794).

The spelling of 16316331433 in words is "sixteen billion, three hundred sixteen million, three hundred thirty-one thousand, four hundred thirty-three".