32665673309 has 2 divisors, whose sum is σ = 32665673310. Its totient is φ = 32665673308.

The previous prime is 32665673279. The next prime is 32665673311. The reversal of 32665673309 is 90337656623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26356548409 + 6309124900 = 162347^2 + 79430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32665673309 is a prime.

Together with 32665673311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32665675309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16332836654 + 16332836655.

It is an arithmetic number, because the mean of its divisors is an integer number (16332836655).

Almost surely, 2^32665673309 is an apocalyptic number.

It is an amenable number.

32665673309 is a deficient number, since it is larger than the sum of its proper divisors (1).

32665673309 is an equidigital number, since it uses as much as digits as its factorization.

32665673309 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 32665673309 in words is "thirty-two billion, six hundred sixty-five million, six hundred seventy-three thousand, three hundred nine".