216080868 has 12 divisors (see below), whose sum is σ = 504188720. Its totient is φ = 72026952.

The previous prime is 216080867. The next prime is 216080869. The reversal of 216080868 is 868080612.

It is an interprime number because it is at equal distance from previous prime (216080867) and next prime (216080869).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (216080867) 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, 9003358 + ... + 9003381.

Almost surely, 2^216080868 is an apocalyptic number.

It is an amenable number.

216080868 is an abundant number, since it is smaller than the sum of its proper divisors (288107852).

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

216080868 is a wasteful number, since it uses less digits than its factorization.

216080868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18006746 (or 18006744 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 216080868 is about 14699.6893844734. The cubic root of 216080868 is about 600.0748684353.

It can be divided in two parts, 2160 and 80868, that added together give a triangular number (83028 = T₄₀₇).

The spelling of 216080868 in words is "two hundred sixteen million, eighty thousand, eight hundred sixty-eight".