2066606868 has 24 divisors (see below), whose sum is σ = 4829080480. Its totient is φ = 687869280.

The previous prime is 2066606863. The next prime is 2066606891. The reversal of 2066606868 is 8686066602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066606863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116323 + ... + 132906.

Almost surely, 2^2066606868 is an apocalyptic number.

It is an amenable number.

2066606868 is an abundant number, since it is smaller than the sum of its proper divisors (2762473612).

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

2066606868 is a wasteful number, since it uses less digits than its factorization.

2066606868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249927 (or 249925 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 2066606868 is about 45459.9479542157. The cubic root of 2066606868 is about 1273.7551593184.

The spelling of 2066606868 in words is "two billion, sixty-six million, six hundred six thousand, eight hundred sixty-eight".