216665062 has 8 divisors (see below), whose sum is σ = 326023776. Its totient is φ = 107990472.

The previous prime is 216665023. The next prime is 216665063. The reversal of 216665062 is 260566612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216665063) 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, 170238 + ... + 171505.

It is an arithmetic number, because the mean of its divisors is an integer number (40752972).

Almost surely, 2^216665062 is an apocalyptic number.

216665062 is a deficient number, since it is larger than the sum of its proper divisors (109358714).

216665062 is a wasteful number, since it uses less digits than its factorization.

216665062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342062.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 216665062 is about 14719.5469359624. The cubic root of 216665062 is about 600.6151672148.

The spelling of 216665062 in words is "two hundred sixteen million, six hundred sixty-five thousand, sixty-two".