166004717 has 8 divisors (see below), whose sum is σ = 167068440. Its totient is φ = 164944960.

The previous prime is 166004689. The next prime is 166004749. The reversal of 166004717 is 717400661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103815721 + 62188996 = 10189^2 + 7886^2 .

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 166004717 - 2¹² = 166000621 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 (166004017) 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, 134459 + ... + 135687.

It is an arithmetic number, because the mean of its divisors is an integer number (20883555).

Almost surely, 2^166004717 is an apocalyptic number.

It is an amenable number.

166004717 is a deficient number, since it is larger than the sum of its proper divisors (1063723).

166004717 is a wasteful number, since it uses less digits than its factorization.

166004717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 166004717 is about 12884.2817805262. The cubic root of 166004717 is about 549.5916715814.

The spelling of 166004717 in words is "one hundred sixty-six million, four thousand, seven hundred seventeen".