16433321073601 has 2 divisors, whose sum is σ = 16433321073602. Its totient is φ = 16433321073600.

The previous prime is 16433321073541. The next prime is 16433321073647. The reversal of 16433321073601 is 10637012333461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10985877105025 + 5447443968576 = 3314495^2 + 2333976^2 .

It is a cyclic number.

It is not a de Polignac number, because 16433321073601 - 2¹¹ = 16433321071553 is a prime.

It is not a weakly prime, because it can be changed into another prime (16433321073671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216660536800 + 8216660536801.

It is an arithmetic number, because the mean of its divisors is an integer number (8216660536801).

Almost surely, 2^{16433321073601} is an apocalyptic number.

It is an amenable number.

16433321073601 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433321073601 is an equidigital number, since it uses as much as digits as its factorization.

16433321073601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 16433321073601 in words is "sixteen trillion, four hundred thirty-three billion, three hundred twenty-one million, seventy-three thousand, six hundred one".