2000664917 has 2 divisors, whose sum is σ = 2000664918. Its totient is φ = 2000664916.

The previous prime is 2000664899. The next prime is 2000664929. The reversal of 2000664917 is 7194660002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1901483236 + 99181681 = 43606^2 + 9959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000664917 - 2²⁰ = 1999616341 is a prime.

It is a super-2 number, since 2×2000664917² = 8005320220229233778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000664517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000332458 + 1000332459.

It is an arithmetic number, because the mean of its divisors is an integer number (1000332459).

Almost surely, 2^2000664917 is an apocalyptic number.

It is an amenable number.

2000664917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000664917 is an equidigital number, since it uses as much as digits as its factorization.

2000664917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2000664917 is about 44728.7929302815. The cubic root of 2000664917 is about 1260.0606582455.

The spelling of 2000664917 in words is "two billion, six hundred sixty-four thousand, nine hundred seventeen".