216606272 has 28 divisors (see below), whose sum is σ = 448519296. Its totient is φ = 103593600.

The previous prime is 216606263. The next prime is 216606277. The reversal of 216606272 is 272606612.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (216606277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72104 + ... + 75047.

Almost surely, 2^216606272 is an apocalyptic number.

It is an amenable number.

216606272 is an abundant number, since it is smaller than the sum of its proper divisors (231913024).

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

216606272 is a wasteful number, since it uses less digits than its factorization.

216606272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147186 (or 147176 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 216606272 is about 14717.5497960768. The cubic root of 216606272 is about 600.5608385665.

The spelling of 216606272 in words is "two hundred sixteen million, six hundred six thousand, two hundred seventy-two".