205534430324 has 24 divisors (see below), whose sum is σ = 379739592960. Its totient is φ = 97069504896.

The previous prime is 205534430323. The next prime is 205534430399. The reversal of 205534430324 is 423034435502.

It is a happy number.

It is a super-2 number, since 2×205534430324² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205534430323) 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, 3986852 + ... + 4038075.

It is an arithmetic number, because the mean of its divisors is an integer number (15822483040).

Almost surely, 2^205534430324 is an apocalyptic number.

It is an amenable number.

205534430324 is a deficient number, since it is larger than the sum of its proper divisors (174205162636).

205534430324 is a wasteful number, since it uses less digits than its factorization.

205534430324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025287 (or 8025285 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 205534430324 its reverse (423034435502), we get a palindrome (628568865826).

The spelling of 205534430324 in words is "two hundred five billion, five hundred thirty-four million, four hundred thirty thousand, three hundred twenty-four".