2023989666 has 8 divisors (see below), whose sum is σ = 4047979344. Its totient is φ = 674663220.

The previous prime is 2023989607. The next prime is 2023989677. The reversal of 2023989666 is 6669893202.

It is a sphenic number, since it is the product of 3 distinct primes.

2023989666 is an admirable number.

It is a Curzon number.

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, 168665800 + ... + 168665811.

It is an arithmetic number, because the mean of its divisors is an integer number (505997418).

Almost surely, 2^2023989666 is an apocalyptic number.

2023989666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2023989666 is a wasteful number, since it uses less digits than its factorization.

2023989666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337331616.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 2023989666 is about 44988.7726660775. The cubic root of 2023989666 is about 1264.9385558641.

The spelling of 2023989666 in words is "two billion, twenty-three million, nine hundred eighty-nine thousand, six hundred sixty-six".