2066405444 has 12 divisors (see below), whose sum is σ = 3616564224. Its totient is φ = 1033101384.

The previous prime is 2066405413. The next prime is 2066405461. The reversal of 2066405444 is 4445046602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38309 + ... + 74835.

It is an arithmetic number, because the mean of its divisors is an integer number (301380352).

Almost surely, 2^2066405444 is an apocalyptic number.

It is an amenable number.

2066405444 is a deficient number, since it is larger than the sum of its proper divisors (1550158780).

2066405444 is a wasteful number, since it uses less digits than its factorization.

2066405444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50674 (or 50672 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 2066405444 is about 45457.7324995429. The cubic root of 2066405444 is about 1273.7137753475.

The spelling of 2066405444 in words is "two billion, sixty-six million, four hundred five thousand, four hundred forty-four".