216216162 has 64 divisors (see below), whose sum is σ = 512064000. Its totient is φ = 67429584.

The previous prime is 216216157. The next prime is 216216191. The reversal of 216216162 is 261612612.

216216162 is a `hidden beast` number, since 21 + 6 + 21 + 616 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 83889 + ... + 86427.

It is an arithmetic number, because the mean of its divisors is an integer number (8001000).

Almost surely, 2^216216162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216216162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256032000).

216216162 is an abundant number, since it is smaller than the sum of its proper divisors (295847838).

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

216216162 is a wasteful number, since it uses less digits than its factorization.

216216162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652 (or 2646 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 216216162 is about 14704.2905983254. The cubic root of 216216162 is about 600.2000832704.

Adding to 216216162 its reverse (261612612), we get a palindrome (477828774).

The spelling of 216216162 in words is "two hundred sixteen million, two hundred sixteen thousand, one hundred sixty-two".