2066643044 has 12 divisors (see below), whose sum is σ = 3617031600. Its totient is φ = 1033205448.

The previous prime is 2066643041. The next prime is 2066643049. The reversal of 2066643044 is 4403466602.

It is a junction number, because it is equal to n+sod(n) for n = 2066642995 and 2066643013.

It is not an unprimeable number, because it can be changed into a prime (2066643041) 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 3 ways as a sum of consecutive naturals, for example, 20387 + ... + 67445.

It is an arithmetic number, because the mean of its divisors is an integer number (301419300).

Almost surely, 2^2066643044 is an apocalyptic number.

It is an amenable number.

2066643044 is a deficient number, since it is larger than the sum of its proper divisors (1550388556).

2066643044 is a wasteful number, since it uses less digits than its factorization.

2066643044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58042 (or 58040 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 2066643044 is about 45460.3458411834. The cubic root of 2066643044 is about 1273.7625916460.

The spelling of 2066643044 in words is "two billion, sixty-six million, six hundred forty-three thousand, forty-four".