2016809608 has 48 divisors (see below), whose sum is σ = 4162567500. Its totient is φ = 915404160.

The previous prime is 2016809591. The next prime is 2016809623. The reversal of 2016809608 is 8069086102.

It can be written as a sum of positive squares in 2 ways, for example, as 1972958724 + 43850884 = 44418^2 + 6622^2 .

It is a super-2 number, since 2×2016809608² = 8135041989842227328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033818 + ... + 1035766.

Almost surely, 2^2016809608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2016809608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2081283750).

2016809608 is an abundant number, since it is smaller than the sum of its proper divisors (2145757892).

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

2016809608 is a wasteful number, since it uses less digits than its factorization.

2016809608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2016809608 is about 44908.9034379598. The cubic root of 2016809608 is about 1263.4410032239.

The spelling of 2016809608 in words is "two billion, sixteen million, eight hundred nine thousand, six hundred eight".