3216163165 has 4 divisors (see below), whose sum is σ = 3859395804. Its totient is φ = 2572930528.

The previous prime is 3216163121. The next prime is 3216163177. The reversal of 3216163165 is 5613616123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1053262116 + 2162901049 = 32454^2 + 46507^2 .

It is a cyclic number.

It is not a de Polignac number, because 3216163165 - 2¹³ = 3216154973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3216163165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321616312 + ... + 321616321.

It is an arithmetic number, because the mean of its divisors is an integer number (964848951).

Almost surely, 2^3216163165 is an apocalyptic number.

It is an amenable number.

3216163165 is a deficient number, since it is larger than the sum of its proper divisors (643232639).

3216163165 is an equidigital number, since it uses as much as digits as its factorization.

3216163165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643232638.

The product of its digits is 19440, while the sum is 34.

The square root of 3216163165 is about 56711.2260932525. The cubic root of 3216163165 is about 1476.0895008986.

Adding to 3216163165 its reverse (5613616123), we get a palindrome (8829779288).

The spelling of 3216163165 in words is "three billion, two hundred sixteen million, one hundred sixty-three thousand, one hundred sixty-five".