205411540334 has 32 divisors (see below), whose sum is σ = 413695973376. Its totient is φ = 73874279520.

The previous prime is 205411540291. The next prime is 205411540339. The reversal of 205411540334 is 433045114502.

It is a self number, because there is not a number n which added to its sum of digits gives 205411540334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205411540339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51299582 + ... + 51303585.

It is an arithmetic number, because the mean of its divisors is an integer number (12927999168).

Almost surely, 2^205411540334 is an apocalyptic number.

205411540334 is an abundant number, since it is smaller than the sum of its proper divisors (208284433042).

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

205411540334 is a wasteful number, since it uses less digits than its factorization.

205411540334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102603200.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 205411540334 its reverse (433045114502), we get a palindrome (638456654836).

The spelling of 205411540334 in words is "two hundred five billion, four hundred eleven million, five hundred forty thousand, three hundred thirty-four".