2001066717 has 8 divisors (see below), whose sum is σ = 2873326624. Its totient is φ = 1231425648.

The previous prime is 2001066701. The next prime is 2001066731. The reversal of 2001066717 is 7176601002.

It is a happy number.

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

It is not a de Polignac number, because 2001066717 - 2⁴ = 2001066701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001066917) 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, 25654663 + ... + 25654740.

It is an arithmetic number, because the mean of its divisors is an integer number (359165828).

Almost surely, 2^2001066717 is an apocalyptic number.

It is an amenable number.

2001066717 is a deficient number, since it is larger than the sum of its proper divisors (872259907).

2001066717 is a wasteful number, since it uses less digits than its factorization.

2001066717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51309419.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 2001066717 is about 44733.2842188007. The cubic root of 2001066717 is about 1260.1450066169.

Adding to 2001066717 its reverse (7176601002), we get a palindrome (9177667719).

The spelling of 2001066717 in words is "two billion, one million, sixty-six thousand, seven hundred seventeen".