216541152 has 36 divisors (see below), whose sum is σ = 615789720. Its totient is φ = 72180288.

The previous prime is 216541147. The next prime is 216541177. The reversal of 216541152 is 251145612.

216541152 is a `hidden beast` number, since 2 + 1 + 654 + 1 + 1 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375652 + ... + 376227.

It is an arithmetic number, because the mean of its divisors is an integer number (17105270).

Almost surely, 2^216541152 is an apocalyptic number.

It is an amenable number.

216541152 is an abundant number, since it is smaller than the sum of its proper divisors (399248568).

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

216541152 is a wasteful number, since it uses less digits than its factorization.

216541152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751895 (or 751884 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 216541152 is about 14715.3373050026. The cubic root of 216541152 is about 600.5006488018.

Adding to 216541152 its reverse (251145612), we get a palindrome (467686764).

The spelling of 216541152 in words is "two hundred sixteen million, five hundred forty-one thousand, one hundred fifty-two".