2020031666 has 8 divisors (see below), whose sum is σ = 3048192000. Its totient is φ = 1003967668.

The previous prime is 2020031639. The next prime is 2020031669. The reversal of 2020031666 is 6661300202.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2020031669) 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, 3023666 + ... + 3024333.

It is an arithmetic number, because the mean of its divisors is an integer number (381024000).

Almost surely, 2^2020031666 is an apocalyptic number.

2020031666 is a deficient number, since it is larger than the sum of its proper divisors (1028160334).

2020031666 is a wasteful number, since it uses less digits than its factorization.

2020031666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048168.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2020031666 is about 44944.7623867342. The cubic root of 2020031666 is about 1264.1134703086.

Adding to 2020031666 its reverse (6661300202), we get a palindrome (8681331868).

The spelling of 2020031666 in words is "two billion, twenty million, thirty-one thousand, six hundred sixty-six".