216333160 has 32 divisors (see below), whose sum is σ = 515383560. Its totient is φ = 81442816.

The previous prime is 216333149. The next prime is 216333167. The reversal of 216333160 is 61333612.

It can be written as a sum of positive squares in 4 ways, for example, as 208571364 + 7761796 = 14442^2 + 2786^2 .

It is a super-2 number, since 2×216333160² = 93600072231171200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216333167) 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, 158389 + ... + 159748.

Almost surely, 2^216333160 is an apocalyptic number.

216333160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216333160 is an abundant number, since it is smaller than the sum of its proper divisors (299050400).

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

216333160 is a wasteful number, since it uses less digits than its factorization.

216333160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318165 (or 318161 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 216333160 is about 14708.2684228974. The cubic root of 216333160 is about 600.3083230159.

Adding to 216333160 its reverse (61333612), we get a palindrome (277666772).

The spelling of 216333160 in words is "two hundred sixteen million, three hundred thirty-three thousand, one hundred sixty".