204445252411 has 4 divisors (see below), whose sum is σ = 209431722024. Its totient is φ = 199458782800.

The previous prime is 204445252409. The next prime is 204445252421. The reversal of 204445252411 is 114252544402.

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

It is a cyclic number.

It is not a de Polignac number, because 204445252411 - 2¹ = 204445252409 is a prime.

It is a super-2 number, since 2×204445252411² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204445252421) 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, 2493234745 + ... + 2493234826.

It is an arithmetic number, because the mean of its divisors is an integer number (52357930506).

Almost surely, 2^204445252411 is an apocalyptic number.

204445252411 is a deficient number, since it is larger than the sum of its proper divisors (4986469613).

204445252411 is an equidigital number, since it uses as much as digits as its factorization.

204445252411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986469612.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 204445252411 its reverse (114252544402), we get a palindrome (318697796813).

The spelling of 204445252411 in words is "two hundred four billion, four hundred forty-five million, two hundred fifty-two thousand, four hundred eleven".