2066906872 has 16 divisors (see below), whose sum is σ = 3884205240. Its totient is φ = 1031118816.

The previous prime is 2066906867. The next prime is 2066906873. The reversal of 2066906872 is 2786096602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066906873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288063 + ... + 295150.

Almost surely, 2^2066906872 is an apocalyptic number.

It is an amenable number.

2066906872 is a deficient number, since it is larger than the sum of its proper divisors (1817298368).

2066906872 is a wasteful number, since it uses less digits than its factorization.

2066906872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583662 (or 583658 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2066906872 is about 45463.2474862938. The cubic root of 2066906872 is about 1273.8167922555.

The spelling of 2066906872 in words is "two billion, sixty-six million, nine hundred six thousand, eight hundred seventy-two".