16433256320361 has 6 divisors (see below), whose sum is σ = 23736925796090. Its totient is φ = 10955504213568.

The previous prime is 16433256320333. The next prime is 16433256320387. The reversal of 16433256320361 is 16302365233461.

16433256320361 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 3 + 2 + 5 + 632 + 0 + 3 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10029097265625 + 6404159054736 = 3166875^2 + 2530644^2 .

It is not a de Polignac number, because 16433256320361 - 2¹⁴ = 16433256303977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16433256320161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 912958684456 + ... + 912958684473.

Almost surely, 2^{16433256320361} is an apocalyptic number.

It is an amenable number.

16433256320361 is a deficient number, since it is larger than the sum of its proper divisors (7303669475729).

16433256320361 is a wasteful number, since it uses less digits than its factorization.

16433256320361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825917368935 (or 1825917368932 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The spelling of 16433256320361 in words is "sixteen trillion, four hundred thirty-three billion, two hundred fifty-six million, three hundred twenty thousand, three hundred sixty-one".