216017164 has 48 divisors (see below), whose sum is σ = 440899200. Its totient is φ = 91516160.

The previous prime is 216017161. The next prime is 216017167. The reversal of 216017164 is 461710612.

It is an interprime number because it is at equal distance from previous prime (216017161) and next prime (216017167).

It is not an unprimeable number, because it can be changed into a prime (216017161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78687 + ... + 81385.

It is an arithmetic number, because the mean of its divisors is an integer number (9185400).

Almost surely, 2^216017164 is an apocalyptic number.

It is an amenable number.

216017164 is an abundant number, since it is smaller than the sum of its proper divisors (224882036).

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

216017164 is a wasteful number, since it uses less digits than its factorization.

216017164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838 (or 2836 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 216017164 is about 14697.5223762374. The cubic root of 216017164 is about 600.0158921717.

Adding to 216017164 its reverse (461710612), we get a palindrome (677727776).

The spelling of 216017164 in words is "two hundred sixteen million, seventeen thousand, one hundred sixty-four".