205243133154152 has 128 divisors (see below), whose sum is σ = 442990191283200. Its totient is φ = 88538366020608.

The previous prime is 205243133154151. The next prime is 205243133154179. The reversal of 205243133154152 is 251451331342502.

205243133154152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205243133154151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3257333 + ... + 20520635.

It is an arithmetic number, because the mean of its divisors is an integer number (3460860869400).

Almost surely, 2^{205243133154152} is an apocalyptic number.

It is an amenable number.

205243133154152 is an abundant number, since it is smaller than the sum of its proper divisors (237747058129048).

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

205243133154152 is a wasteful number, since it uses less digits than its factorization.

205243133154152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17263495 (or 17263491 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 205243133154152 its reverse (251451331342502), we get a palindrome (456694464496654).

The spelling of 205243133154152 in words is "two hundred five trillion, two hundred forty-three billion, one hundred thirty-three million, one hundred fifty-four thousand, one hundred fifty-two".