2000666738 has 16 divisors (see below), whose sum is σ = 3522410304. Its totient is φ = 834254640.

The previous prime is 2000666729. The next prime is 2000666749. The reversal of 2000666738 is 8376660002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930628 + ... + 1931663.

It is an arithmetic number, because the mean of its divisors is an integer number (220150644).

Almost surely, 2^2000666738 is an apocalyptic number.

2000666738 is a deficient number, since it is larger than the sum of its proper divisors (1521743566).

2000666738 is a wasteful number, since it uses less digits than its factorization.

2000666738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862337.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2000666738 is about 44728.8132862923. The cubic root of 2000666738 is about 1260.0610405467.

The spelling of 2000666738 in words is "two billion, six hundred sixty-six thousand, seven hundred thirty-eight".