216849116 has 12 divisors (see below), whose sum is σ = 413984760. Its totient is φ = 98567760.

The previous prime is 216849107. The next prime is 216849133. The reversal of 216849116 is 611948612.

It is a self number, because there is not a number n which added to its sum of digits gives 216849116.

It is a congruent number.

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, 2464151 + ... + 2464238.

It is an arithmetic number, because the mean of its divisors is an integer number (34498730).

Almost surely, 2^216849116 is an apocalyptic number.

It is an amenable number.

216849116 is a deficient number, since it is larger than the sum of its proper divisors (197135644).

216849116 is a wasteful number, since it uses less digits than its factorization.

216849116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928404 (or 4928402 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 216849116 is about 14725.7976354424. The cubic root of 216849116 is about 600.7851905300.

The spelling of 216849116 in words is "two hundred sixteen million, eight hundred forty-nine thousand, one hundred sixteen".