216160285 has 16 divisors (see below), whose sum is σ = 288997632. Its totient is φ = 153860800.

The previous prime is 216160277. The next prime is 216160289. The reversal of 216160285 is 582061612.

It is not a de Polignac number, because 216160285 - 2³ = 216160277 is a prime.

It is a super-2 number, since 2×216160285² = 93450537622562450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216160289) 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 15 ways as a sum of consecutive naturals, for example, 39226 + ... + 44395.

It is an arithmetic number, because the mean of its divisors is an integer number (18062352).

Almost surely, 2^216160285 is an apocalyptic number.

It is an amenable number.

216160285 is a deficient number, since it is larger than the sum of its proper divisors (72837347).

216160285 is a wasteful number, since it uses less digits than its factorization.

216160285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83684.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 216160285 is about 14702.3904518959. The cubic root of 216160285 is about 600.1483753419.

The spelling of 216160285 in words is "two hundred sixteen million, one hundred sixty thousand, two hundred eighty-five".