205087016 has 8 divisors (see below), whose sum is σ = 384538170. Its totient is φ = 102543504.

The previous prime is 205086983. The next prime is 205087019. The reversal of 205087016 is 610780502.

It can be written as a sum of positive squares in only one way, i.e., 155102116 + 49984900 = 12454^2 + 7070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 205087016.

It is not an unprimeable number, because it can be changed into a prime (205087019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12817931 + ... + 12817946.

Almost surely, 2^205087016 is an apocalyptic number.

It is an amenable number.

205087016 is a deficient number, since it is larger than the sum of its proper divisors (179451154).

205087016 is a wasteful number, since it uses less digits than its factorization.

205087016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25635883 (or 25635879 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 205087016 is about 14320.8594714144. The cubic root of 205087016 is about 589.7202695786.

The spelling of 205087016 in words is "two hundred five million, eighty-seven thousand, sixteen".