16433321073539 has 2 divisors, whose sum is σ = 16433321073540. Its totient is φ = 16433321073538.

The previous prime is 16433321073523. The next prime is 16433321073541. The reversal of 16433321073539 is 93537012333461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16433321073539 - 2⁴ = 16433321073523 is a prime.

Together with 16433321073541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16433321073509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216660536769 + 8216660536770.

It is an arithmetic number, because the mean of its divisors is an integer number (8216660536770).

Almost surely, 2^{16433321073539} is an apocalyptic number.

16433321073539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433321073539 is an equidigital number, since it uses as much as digits as its factorization.

16433321073539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 50.

The spelling of 16433321073539 in words is "sixteen trillion, four hundred thirty-three billion, three hundred twenty-one million, seventy-three thousand, five hundred thirty-nine".