208918522016 has 24 divisors (see below), whose sum is σ = 411555180960. Its totient is φ = 104396571328.

The previous prime is 208918521989. The next prime is 208918522027. The reversal of 208918522016 is 610225819802.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1904876 + ... + 2011563.

It is an arithmetic number, because the mean of its divisors is an integer number (17148132540).

Almost surely, 2^208918522016 is an apocalyptic number.

It is an amenable number.

208918522016 is a deficient number, since it is larger than the sum of its proper divisors (202636658944).

208918522016 is a wasteful number, since it uses less digits than its factorization.

208918522016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918116 (or 3918108 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 208918522016 in words is "two hundred eight billion, nine hundred eighteen million, five hundred twenty-two thousand, sixteen".