216366346 has 8 divisors (see below), whose sum is σ = 370913760. Its totient is φ = 92728428.

The previous prime is 216366331. The next prime is 216366349. The reversal of 216366346 is 643663612.

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

It is not an unprimeable number, because it can be changed into a prime (216366349) 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, 7727356 + ... + 7727383.

It is an arithmetic number, because the mean of its divisors is an integer number (46364220).

Almost surely, 2^216366346 is an apocalyptic number.

216366346 is a deficient number, since it is larger than the sum of its proper divisors (154547414).

216366346 is a wasteful number, since it uses less digits than its factorization.

216366346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454748.

The product of its digits is 93312, while the sum is 37.

The square root of 216366346 is about 14709.3965205919. The cubic root of 216366346 is about 600.3390176682.

The spelling of 216366346 in words is "two hundred sixteen million, three hundred sixty-six thousand, three hundred forty-six".