205205016 has 32 divisors (see below), whose sum is σ = 540014400. Its totient is φ = 64801440.

The previous prime is 205204969. The next prime is 205205017. The reversal of 205205016 is 610502502.

It is a junction number, because it is equal to n+sod(n) for n = 205204983 and 205205001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205205017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224550 + ... + 225461.

It is an arithmetic number, because the mean of its divisors is an integer number (16875450).

Almost surely, 2^205205016 is an apocalyptic number.

It is an amenable number.

205205016 is an abundant number, since it is smaller than the sum of its proper divisors (334809384).

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

205205016 is a wasteful number, since it uses less digits than its factorization.

205205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450039 (or 450035 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 205205016 is about 14324.9787434397. The cubic root of 205205016 is about 589.8333494661.

Adding to 205205016 its reverse (610502502), we get a palindrome (815707518).

The spelling of 205205016 in words is "two hundred five million, two hundred five thousand, sixteen".