216170112 has 32 divisors (see below), whose sum is σ = 574202880. Its totient is φ = 72056576.

The previous prime is 216170107. The next prime is 216170131. The reversal of 216170112 is 211071612.

It is a happy number.

216170112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

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, 281088 + ... + 281855.

It is an arithmetic number, because the mean of its divisors is an integer number (17943840).

Almost surely, 2^216170112 is an apocalyptic number.

It is an amenable number.

216170112 is an abundant number, since it is smaller than the sum of its proper divisors (358032768).

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

216170112 is an equidigital number, since it uses as much as digits as its factorization.

216170112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562960 (or 562948 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 216170112 is about 14702.7246454526. The cubic root of 216170112 is about 600.1574697796.

The spelling of 216170112 in words is "two hundred sixteen million, one hundred seventy thousand, one hundred twelve".