205533296929 has 8 divisors (see below), whose sum is σ = 217963008648. Its totient is φ = 193141309440.

The previous prime is 205533296921. The next prime is 205533296933. The reversal of 205533296929 is 929692335502.

It can be written as a sum of positive squares in 4 ways, for example, as 121418796304 + 84114500625 = 348452^2 + 290025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205533296929 - 2³ = 205533296921 is a prime.

It is a super-2 number, since 2×205533296929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205533296929.

It is not an unprimeable number, because it can be changed into a prime (205533296921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419832 + ... + 9441625.

It is an arithmetic number, because the mean of its divisors is an integer number (27245376081).

Almost surely, 2^205533296929 is an apocalyptic number.

It is an amenable number.

205533296929 is a deficient number, since it is larger than the sum of its proper divisors (12429711719).

205533296929 is a wasteful number, since it uses less digits than its factorization.

205533296929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18862115.

The product of its (nonzero) digits is 7873200, while the sum is 55.

The spelling of 205533296929 in words is "two hundred five billion, five hundred thirty-three million, two hundred ninety-six thousand, nine hundred twenty-nine".