205355111352 has 64 divisors (see below), whose sum is σ = 532726191360. Its totient is φ = 65918092800.

The previous prime is 205355111329. The next prime is 205355111359. The reversal of 205355111352 is 253111553502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205355111359) 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, 1328049 + ... + 1474592.

It is an arithmetic number, because the mean of its divisors is an integer number (8323846740).

Almost surely, 2^205355111352 is an apocalyptic number.

It is an amenable number.

205355111352 is an abundant number, since it is smaller than the sum of its proper divisors (327371080008).

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

205355111352 is a wasteful number, since it uses less digits than its factorization.

205355111352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802764 (or 2802760 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 205355111352 its reverse (253111553502), we get a palindrome (458466664854).

The spelling of 205355111352 in words is "two hundred five billion, three hundred fifty-five million, one hundred eleven thousand, three hundred fifty-two".