204245443405111 has 8 divisors (see below), whose sum is σ = 208997260868880. Its totient is φ = 199493713370112.

The previous prime is 204245443405061. The next prime is 204245443405117. The reversal of 204245443405111 is 111504344542402.

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 204245443405111 - 2⁷ = 204245443404983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204245443405117) 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, 17118760 + ... + 26486653.

It is an arithmetic number, because the mean of its divisors is an integer number (26124657608610).

Almost surely, 2^{204245443405111} is an apocalyptic number.

204245443405111 is a deficient number, since it is larger than the sum of its proper divisors (4751817463769).

204245443405111 is a wasteful number, since it uses less digits than its factorization.

204245443405111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43714385.

The product of its (nonzero) digits is 307200, while the sum is 40.

Adding to 204245443405111 its reverse (111504344542402), we get a palindrome (315749787947513).

The spelling of 204245443405111 in words is "two hundred four trillion, two hundred forty-five billion, four hundred forty-three million, four hundred five thousand, one hundred eleven".