216146170 has 16 divisors (see below), whose sum is σ = 390184200. Its totient is φ = 86209344.

The previous prime is 216146159. The next prime is 216146171. The reversal of 216146170 is 71641612.

It can be written as a sum of positive squares in 4 ways, for example, as 187662601 + 28483569 = 13699^2 + 5337^2 .

It is not an unprimeable number, because it can be changed into a prime (216146171) 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 7 ways as a sum of consecutive naturals, for example, 27477 + ... + 34456.

Almost surely, 2^216146170 is an apocalyptic number.

216146170 is a deficient number, since it is larger than the sum of its proper divisors (174038030).

216146170 is a wasteful number, since it uses less digits than its factorization.

216146170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62289.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 216146170 is about 14701.9104200781. The cubic root of 216146170 is about 600.1353120747.

Adding to 216146170 its reverse (71641612), we get a palindrome (287787782).

The spelling of 216146170 in words is "two hundred sixteen million, one hundred forty-six thousand, one hundred seventy".