205315533052044 has 48 divisors (see below), whose sum is σ = 489279156538368. Its totient is φ = 66980098539648.

The previous prime is 205315533051983. The next prime is 205315533052163. The reversal of 205315533052044 is 440250335513502.

It is a super-2 number, since 2×205315533052044² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205315533051987 and 205315533052005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10488792 + ... + 22817664.

It is an arithmetic number, because the mean of its divisors is an integer number (10193315761216).

Almost surely, 2^{205315533052044} is an apocalyptic number.

It is an amenable number.

205315533052044 is an abundant number, since it is smaller than the sum of its proper divisors (283963623486324).

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

205315533052044 is a wasteful number, since it uses less digits than its factorization.

205315533052044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358454 (or 12358452 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 205315533052044 its reverse (440250335513502), we get a palindrome (645565868565546).

The spelling of 205315533052044 in words is "two hundred five trillion, three hundred fifteen billion, five hundred thirty-three million, fifty-two thousand, forty-four".