1666050044 has 12 divisors (see below), whose sum is σ = 2934897168. Its totient is φ = 827508000.

The previous prime is 1666050041. The next prime is 1666050049. The reversal of 1666050044 is 4400506661.

It is a super-2 number, since 2×1666050044² = 5551445498224803872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666050041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378577 + ... + 1379784.

It is an arithmetic number, because the mean of its divisors is an integer number (244574764).

Almost surely, 2^1666050044 is an apocalyptic number.

It is an amenable number.

1666050044 is a deficient number, since it is larger than the sum of its proper divisors (1268847124).

1666050044 is a wasteful number, since it uses less digits than its factorization.

1666050044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758516 (or 2758514 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1666050044 is about 40817.2762932560. The cubic root of 1666050044 is about 1185.4848660585.

The spelling of 1666050044 in words is "one billion, six hundred sixty-six million, fifty thousand, forty-four".