66324617 has 8 divisors (see below), whose sum is σ = 69330816. Its totient is φ = 63328672.

The previous prime is 66324613. The next prime is 66324697. The reversal of 66324617 is 71642366.

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 66324617 - 2² = 66324613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66324613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12653 + ... + 17109.

It is an arithmetic number, because the mean of its divisors is an integer number (8666352).

Almost surely, 2^66324617 is an apocalyptic number.

It is an amenable number.

66324617 is a deficient number, since it is larger than the sum of its proper divisors (3006199).

66324617 is a wasteful number, since it uses less digits than its factorization.

66324617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127.

The product of its digits is 36288, while the sum is 35.

The square root of 66324617 is about 8143.9926940046. The cubic root of 66324617 is about 404.7854719154.

The spelling of 66324617 in words is "sixty-six million, three hundred twenty-four thousand, six hundred seventeen".