216533144124333 has 72 divisors (see below), whose sum is σ = 335207239200288. Its totient is φ = 139676916132000.

The previous prime is 216533144124277. The next prime is 216533144124377. The reversal of 216533144124333 is 333421441335612.

216533144124333 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 331 + 4 + 41 + 243 + 33 = 666.

It is not a de Polignac number, because 216533144124333 - 2²⁰ = 216533143075757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216533144129333) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1562433103 + ... + 1562571683.

It is an arithmetic number, because the mean of its divisors is an integer number (4655656100004).

Almost surely, 2^{216533144124333} is an apocalyptic number.

It is an amenable number.

216533144124333 is a deficient number, since it is larger than the sum of its proper divisors (118674095075955).

216533144124333 is an equidigital number, since it uses as much as digits as its factorization.

216533144124333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145349 (or 145306 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

Adding to 216533144124333 its reverse (333421441335612), we get a palindrome (549954585459945).

The spelling of 216533144124333 in words is "two hundred sixteen trillion, five hundred thirty-three billion, one hundred forty-four million, one hundred twenty-four thousand, three hundred thirty-three".