216443156 has 12 divisors (see below), whose sum is σ = 395244192. Its totient is φ = 103516248.

The previous prime is 216443137. The next prime is 216443159. The reversal of 216443156 is 651344612.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216443159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1176230 + ... + 1176413.

It is an arithmetic number, because the mean of its divisors is an integer number (32937016).

Almost surely, 2^216443156 is an apocalyptic number.

It is an amenable number.

216443156 is a deficient number, since it is larger than the sum of its proper divisors (178801036).

216443156 is a wasteful number, since it uses less digits than its factorization.

216443156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352670 (or 2352668 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 216443156 is about 14712.0072050010. The cubic root of 216443156 is about 600.4100493317.

Adding to 216443156 its reverse (651344612), we get a palindrome (867787768).

The spelling of 216443156 in words is "two hundred sixteen million, four hundred forty-three thousand, one hundred fifty-six".