205344623233 has 4 divisors (see below), whose sum is σ = 212425472340. Its totient is φ = 198263774128.

The previous prime is 205344623221. The next prime is 205344623243. The reversal of 205344623233 is 332326443502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83032151409 + 122312471824 = 288153^2 + 349732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205344623233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205344623192 and 205344623201.

It is not an unprimeable number, because it can be changed into a prime (205344623243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3540424510 + ... + 3540424567.

It is an arithmetic number, because the mean of its divisors is an integer number (53106368085).

Almost surely, 2^205344623233 is an apocalyptic number.

It is an amenable number.

205344623233 is a deficient number, since it is larger than the sum of its proper divisors (7080849107).

205344623233 is an equidigital number, since it uses as much as digits as its factorization.

205344623233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080849106.

The product of its (nonzero) digits is 311040, while the sum is 37.

The spelling of 205344623233 in words is "two hundred five billion, three hundred forty-four million, six hundred twenty-three thousand, two hundred thirty-three".