216025916 has 6 divisors (see below), whose sum is σ = 378045360. Its totient is φ = 108012956.

The previous prime is 216025903. The next prime is 216025939. The reversal of 216025916 is 619520612.

It is a happy number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 27003236 + ... + 27003243.

It is an arithmetic number, because the mean of its divisors is an integer number (63007560).

Almost surely, 2^216025916 is an apocalyptic number.

It is an amenable number.

216025916 is a deficient number, since it is larger than the sum of its proper divisors (162019444).

216025916 is a wasteful number, since it uses less digits than its factorization.

216025916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54006483 (or 54006481 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 216025916 is about 14697.8201104790. The cubic root of 216025916 is about 600.0239953367.

The spelling of 216025916 in words is "two hundred sixteen million, twenty-five thousand, nine hundred sixteen".