2066434872 has 64 divisors (see below), whose sum is σ = 5221497600. Its totient is φ = 681457920.

The previous prime is 2066434823. The next prime is 2066434873. The reversal of 2066434872 is 2784346602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066434873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285093 + ... + 1286699.

It is an arithmetic number, because the mean of its divisors is an integer number (81585900).

Almost surely, 2^2066434872 is an apocalyptic number.

It is an amenable number.

2066434872 is an abundant number, since it is smaller than the sum of its proper divisors (3155062728).

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

2066434872 is a wasteful number, since it uses less digits than its factorization.

2066434872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 2066434872 is about 45458.0561836953. The cubic root of 2066434872 is about 1273.7198217039.

It can be divided in two parts, 206 and 6434872, that added together give a triangular number (6435078 = T₃₅₈₇).

The spelling of 2066434872 in words is "two billion, sixty-six million, four hundred thirty-four thousand, eight hundred seventy-two".