205055245121104 has 40 divisors (see below), whose sum is σ = 473792243391360. Its totient is φ = 84059914147968.

The previous prime is 205055245121101. The next prime is 205055245121179. The reversal of 205055245121104 is 401121542550502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205055245121101) 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, 39801093139 + ... + 39801098290.

It is an arithmetic number, because the mean of its divisors is an integer number (11844806084784).

Almost surely, 2^{205055245121104} is an apocalyptic number.

It is an amenable number.

205055245121104 is an abundant number, since it is smaller than the sum of its proper divisors (268736998270256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205055245121104 is a wasteful number, since it uses less digits than its factorization.

205055245121104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79602191467 (or 79602191461 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 205055245121104 its reverse (401121542550502), we get a palindrome (606176787671606).

The spelling of 205055245121104 in words is "two hundred five trillion, fifty-five billion, two hundred forty-five million, one hundred twenty-one thousand, one hundred four".