216801068 has 24 divisors (see below), whose sum is σ = 438241104. Its totient is φ = 92748800.

The previous prime is 216801049. The next prime is 216801097. The reversal of 216801068 is 860108612.

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, 144173 + ... + 145668.

It is an arithmetic number, because the mean of its divisors is an integer number (18260046).

Almost surely, 2^216801068 is an apocalyptic number.

It is an amenable number.

216801068 is an abundant number, since it is smaller than the sum of its proper divisors (221440036).

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

216801068 is a wasteful number, since it uses less digits than its factorization.

216801068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289873 (or 289871 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 216801068 is about 14724.1661223989. The cubic root of 216801068 is about 600.7408145761.

The spelling of 216801068 in words is "two hundred sixteen million, eight hundred one thousand, sixty-eight".