2066434873 has 2 divisors, whose sum is σ = 2066434874. Its totient is φ = 2066434872.

The previous prime is 2066434823. The next prime is 2066434879. The reversal of 2066434873 is 3784346602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1953905209 + 112529664 = 44203^2 + 10608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066434873 - 2²¹ = 2064337721 is a prime.

It is a super-2 number, since 2×2066434873² = 8540306168701052258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2066434879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033217436 + 1033217437.

It is an arithmetic number, because the mean of its divisors is an integer number (1033217437).

Almost surely, 2^2066434873 is an apocalyptic number.

It is an amenable number.

2066434873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066434873 is an equidigital number, since it uses as much as digits as its factorization.

2066434873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 43.

The square root of 2066434873 is about 45458.0561946945. The cubic root of 2066434873 is about 1273.7198219093.

The spelling of 2066434873 in words is "two billion, sixty-six million, four hundred thirty-four thousand, eight hundred seventy-three".