1668500017 has 8 divisors (see below), whose sum is σ = 1743609024. Its totient is φ = 1593604848.

The previous prime is 1668499993. The next prime is 1668500033. The reversal of 1668500017 is 7100058661.

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

It is a cyclic number.

It is not a de Polignac number, because 1668500017 - 2¹¹ = 1668497969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668500417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37398 + ... + 68815.

It is an arithmetic number, because the mean of its divisors is an integer number (217951128).

Almost surely, 2^1668500017 is an apocalyptic number.

It is an amenable number.

1668500017 is a deficient number, since it is larger than the sum of its proper divisors (75109007).

1668500017 is a wasteful number, since it uses less digits than its factorization.

1668500017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106919.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1668500017 is about 40847.2767390924. The cubic root of 1668500017 is about 1186.0656776246.

Adding to 1668500017 its reverse (7100058661), we get a palindrome (8768558678).

The spelling of 1668500017 in words is "one billion, six hundred sixty-eight million, five hundred thousand, seventeen".