204120314553 has 16 divisors (see below), whose sum is σ = 278076398400. Its totient is φ = 133149483456.

The previous prime is 204120314551. The next prime is 204120314641. The reversal of 204120314553 is 355413021402.

204120314553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204120314553 - 2¹ = 204120314551 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 204120314553.

It is not an unprimeable number, because it can be changed into a prime (204120314551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3377850 + ... + 3437747.

It is an arithmetic number, because the mean of its divisors is an integer number (17379774900).

Almost surely, 2^204120314553 is an apocalyptic number.

It is an amenable number.

204120314553 is a deficient number, since it is larger than the sum of its proper divisors (73956083847).

204120314553 is a wasteful number, since it uses less digits than its factorization.

204120314553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815816.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 204120314553 its reverse (355413021402), we get a palindrome (559533335955).

The spelling of 204120314553 in words is "two hundred four billion, one hundred twenty million, three hundred fourteen thousand, five hundred fifty-three".