216768012 has 24 divisors (see below), whose sum is σ = 507625776. Its totient is φ = 71994048.

The previous prime is 216767989. The next prime is 216768043. The reversal of 216768012 is 210867612.

It is a super-3 number, since 3×216768012³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29283 + ... + 35930.

It is an arithmetic number, because the mean of its divisors is an integer number (21151074).

Almost surely, 2^216768012 is an apocalyptic number.

It is an amenable number.

216768012 is an abundant number, since it is smaller than the sum of its proper divisors (290857764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216768012 is a wasteful number, since it uses less digits than its factorization.

216768012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65497 (or 65495 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 216768012 is about 14723.0435712186. The cubic root of 216768012 is about 600.7102810585.

The spelling of 216768012 in words is "two hundred sixteen million, seven hundred sixty-eight thousand, twelve".