216000164 has 24 divisors (see below), whose sum is σ = 401008608. Its totient is φ = 101450880.

The previous prime is 216000139. The next prime is 216000179. The reversal of 216000164 is 461000612.

It is a happy number.

216000164 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

216000164 is strictly pandigital in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36047 + ... + 41609.

It is an arithmetic number, because the mean of its divisors is an integer number (16708692).

Almost surely, 2^216000164 is an apocalyptic number.

It is an amenable number.

216000164 is a deficient number, since it is larger than the sum of its proper divisors (185008444).

216000164 is a wasteful number, since it uses less digits than its factorization.

216000164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155 (or 6153 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 216000164 is about 14696.9440360913. The cubic root of 216000164 is about 600.0001518518. Note that the first 3 decimals are identical.

Adding to 216000164 its reverse (461000612), we get a palindrome (677000776).

The spelling of 216000164 in words is "two hundred sixteen million, one hundred sixty-four", and thus it is an aban number.