433373783116661 has 2 divisors, whose sum is σ = 433373783116662. Its totient is φ = 433373783116660.

The previous prime is 433373783116619. The next prime is 433373783116669. The reversal of 433373783116661 is 166611387373334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417609905476036 + 15763877640625 = 20435506^2 + 3970375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-433373783116661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 433373783116594 and 433373783116603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (433373783116669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216686891558330 + 216686891558331.

It is an arithmetic number, because the mean of its divisors is an integer number (216686891558331).

Almost surely, 2^{433373783116661} is an apocalyptic number.

It is an amenable number.

433373783116661 is a deficient number, since it is larger than the sum of its proper divisors (1).

433373783116661 is an equidigital number, since it uses as much as digits as its factorization.

433373783116661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 62.

The spelling of 433373783116661 in words is "four hundred thirty-three trillion, three hundred seventy-three billion, seven hundred eighty-three million, one hundred sixteen thousand, six hundred sixty-one".