216723016 has 16 divisors (see below), whose sum is σ = 415002240. Its totient is φ = 106055760.

The previous prime is 216722999. The next prime is 216723019. The reversal of 216723016 is 610327612.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (216723019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287820 + ... + 288571.

It is an arithmetic number, because the mean of its divisors is an integer number (25937640).

Almost surely, 2^216723016 is an apocalyptic number.

It is an amenable number.

216723016 is a deficient number, since it is larger than the sum of its proper divisors (198279224).

216723016 is a wasteful number, since it uses less digits than its factorization.

216723016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576444 (or 576440 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 216723016 is about 14721.5154111253. The cubic root of 216723016 is about 600.6687136857.

The spelling of 216723016 in words is "two hundred sixteen million, seven hundred twenty-three thousand, sixteen".