205033324420 has 24 divisors (see below), whose sum is σ = 433459719000. Its totient is φ = 81462903552.

The previous prime is 205033324399. The next prime is 205033324427. The reversal of 205033324420 is 24423330502.

It can be written as a sum of positive squares in 4 ways, for example, as 1666598976 + 203366725444 = 40824^2 + 450962^2 .

It is not an unprimeable number, because it can be changed into a prime (205033324427) 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, 34398585 + ... + 34404544.

It is an arithmetic number, because the mean of its divisors is an integer number (18060821625).

Almost surely, 2^205033324420 is an apocalyptic number.

205033324420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205033324420 is an abundant number, since it is smaller than the sum of its proper divisors (228426394580).

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

205033324420 is a wasteful number, since it uses less digits than its factorization.

205033324420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68803287 (or 68803285 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 205033324420 its reverse (24423330502), we get a palindrome (229456654922).

The spelling of 205033324420 in words is "two hundred five billion, thirty-three million, three hundred twenty-four thousand, four hundred twenty".