2016165810 has 64 divisors (see below), whose sum is σ = 5130316800. Its totient is φ = 505662912.

The previous prime is 2016165761. The next prime is 2016165821. The reversal of 2016165810 is 185616102.

It is a super-2 number, since 2×2016165810² = 8129849146825912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66507 + ... + 91953.

It is an arithmetic number, because the mean of its divisors is an integer number (80161200).

Almost surely, 2^2016165810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2016165810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2565158400).

2016165810 is an abundant number, since it is smaller than the sum of its proper divisors (3114150990).

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

2016165810 is a wasteful number, since it uses less digits than its factorization.

2016165810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25615.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 2016165810 is about 44901.7350444278. The cubic root of 2016165810 is about 1263.3065520337.

The spelling of 2016165810 in words is "two billion, sixteen million, one hundred sixty-five thousand, eight hundred ten".