216606274 has 8 divisors (see below), whose sum is σ = 326145600. Its totient is φ = 107891076.

The previous prime is 216606263. The next prime is 216606277. The reversal of 216606274 is 472606612.

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 (216606277) 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, 205374 + ... + 206425.

It is an arithmetic number, because the mean of its divisors is an integer number (40768200).

Almost surely, 2^216606274 is an apocalyptic number.

216606274 is a deficient number, since it is larger than the sum of its proper divisors (109539326).

216606274 is a wasteful number, since it uses less digits than its factorization.

216606274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412064.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 216606274 is about 14717.5498640229. The cubic root of 216606274 is about 600.5608404149.

The spelling of 216606274 in words is "two hundred sixteen million, six hundred six thousand, two hundred seventy-four".