216660160 has 112 divisors (see below), whose sum is σ = 549005760. Its totient is φ = 81285120.

The previous prime is 216660091. The next prime is 216660181. The reversal of 216660160 is 61066612.

216660160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343045 + ... + 343675.

Almost surely, 2^216660160 is an apocalyptic number.

216660160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216660160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274502880).

216660160 is an abundant number, since it is smaller than the sum of its proper divisors (332345600).

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

216660160 is a wasteful number, since it uses less digits than its factorization.

216660160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 704 counting only the distinct ones).

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

The square root of 216660160 is about 14719.3804217433. The cubic root of 216660160 is about 600.6106375847.

It can be divided in two parts, 2166 and 60160, that added together give a palindrome (62326).

The spelling of 216660160 in words is "two hundred sixteen million, six hundred sixty thousand, one hundred sixty".