616550216 has 16 divisors (see below), whose sum is σ = 1166639100. Its totient is φ = 305446464.

The previous prime is 616550191. The next prime is 616550257. The reversal of 616550216 is 612055616.

It can be written as a sum of positive squares in 2 ways, for example, as 616528900 + 21316 = 24830^2 + 146^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352655 + ... + 354398.

Almost surely, 2^616550216 is an apocalyptic number.

It is an amenable number.

616550216 is a deficient number, since it is larger than the sum of its proper divisors (550088884).

616550216 is a wasteful number, since it uses less digits than its factorization.

616550216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707168 (or 707164 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 616550216 is about 24830.4292351139. The cubic root of 616550216 is about 851.1174304706.

The spelling of 616550216 in words is "six hundred sixteen million, five hundred fifty thousand, two hundred sixteen".