216161326 has 16 divisors (see below), whose sum is σ = 343751040. Its totient is φ = 101766240.

The previous prime is 216161321. The next prime is 216161353. The reversal of 216161326 is 623161612.

216161326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216161294 and 216161303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216161321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44821 + ... + 49408.

It is an arithmetic number, because the mean of its divisors is an integer number (21484440).

Almost surely, 2^216161326 is an apocalyptic number.

216161326 is a deficient number, since it is larger than the sum of its proper divisors (127589714).

216161326 is a wasteful number, since it uses less digits than its factorization.

216161326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94299.

The product of its digits is 2592, while the sum is 28.

The square root of 216161326 is about 14702.4258542596. The cubic root of 216161326 is about 600.1493387527.

The spelling of 216161326 in words is "two hundred sixteen million, one hundred sixty-one thousand, three hundred twenty-six".