204212544023005 has 96 divisors (see below), whose sum is σ = 288431625081600. Its totient is φ = 138386932669440.

The previous prime is 204212544023003. The next prime is 204212544023011. The reversal of 204212544023005 is 500320445212402.

It is not a de Polignac number, because 204212544023005 - 2¹ = 204212544023003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204212544023003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11221076896 + ... + 11221095094.

It is an arithmetic number, because the mean of its divisors is an integer number (3004496094600).

Almost surely, 2^{204212544023005} is an apocalyptic number.

It is an amenable number.

204212544023005 is a deficient number, since it is larger than the sum of its proper divisors (84219081058595).

204212544023005 is a wasteful number, since it uses less digits than its factorization.

204212544023005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19779 (or 19772 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 204212544023005 its reverse (500320445212402), we get a palindrome (704532989235407).

The spelling of 204212544023005 in words is "two hundred four trillion, two hundred twelve billion, five hundred forty-four million, twenty-three thousand, five".