2016606440 has 64 divisors (see below), whose sum is σ = 4667846400. Its totient is φ = 783698688.

The previous prime is 2016606407. The next prime is 2016606463. The reversal of 2016606440 is 446066102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257462 + ... + 265178.

It is an arithmetic number, because the mean of its divisors is an integer number (72935100).

Almost surely, 2^2016606440 is an apocalyptic number.

2016606440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2016606440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2333923200).

2016606440 is an abundant number, since it is smaller than the sum of its proper divisors (2651239960).

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

2016606440 is a wasteful number, since it uses less digits than its factorization.

2016606440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914 (or 7910 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2016606440 is about 44906.6413796445. The cubic root of 2016606440 is about 1263.3985765779.

The spelling of 2016606440 in words is "two billion, sixteen million, six hundred six thousand, four hundred forty".