2066906873 has 2 divisors, whose sum is σ = 2066906874. Its totient is φ = 2066906872.

The previous prime is 2066906867. The next prime is 2066906893. The reversal of 2066906873 is 3786096602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1365080809 + 701826064 = 36947^2 + 26492^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066906873 - 2¹² = 2066902777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2066906813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033453436 + 1033453437.

It is an arithmetic number, because the mean of its divisors is an integer number (1033453437).

Almost surely, 2^2066906873 is an apocalyptic number.

It is an amenable number.

2066906873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066906873 is an equidigital number, since it uses as much as digits as its factorization.

2066906873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 2066906873 is about 45463.2474972917. The cubic root of 2066906873 is about 1273.8167924609.

The spelling of 2066906873 in words is "two billion, sixty-six million, nine hundred six thousand, eight hundred seventy-three".