2066906868 has 96 divisors (see below), whose sum is σ = 5705011200. Its totient is φ = 576284544.

The previous prime is 2066906867. The next prime is 2066906873. The reversal of 2066906868 is 8686096602.

It is a self number, because there is not a number n which added to its sum of digits gives 2066906868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066906867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53013 + ... + 83331.

It is an arithmetic number, because the mean of its divisors is an integer number (59427200).

Almost surely, 2^2066906868 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 2066906868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2852505600).

2066906868 is an abundant number, since it is smaller than the sum of its proper divisors (3638104332).

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

2066906868 is a wasteful number, since it uses less digits than its factorization.

2066906868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30381 (or 30379 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 2066906868 is about 45463.2474423022. The cubic root of 2066906868 is about 1273.8167914337.

The spelling of 2066906868 in words is "two billion, sixty-six million, nine hundred six thousand, eight hundred sixty-eight".