66522317 has 8 divisors (see below), whose sum is σ = 69168000. Its totient is φ = 63900144.

The previous prime is 66522301. The next prime is 66522331. The reversal of 66522317 is 71322566.

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 66522317 - 2⁴ = 66522301 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 (66522347) 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, 8 + ... + 11534.

It is an arithmetic number, because the mean of its divisors is an integer number (8646000).

Almost surely, 2^66522317 is an apocalyptic number.

It is an amenable number.

66522317 is a deficient number, since it is larger than the sum of its proper divisors (2645683).

66522317 is a wasteful number, since it uses less digits than its factorization.

66522317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11755.

The product of its digits is 15120, while the sum is 32.

The square root of 66522317 is about 8156.1214434313. The cubic root of 66522317 is about 405.1872669506.

The spelling of 66522317 in words is "sixty-six million, five hundred twenty-two thousand, three hundred seventeen".