66601327 has 8 divisors (see below), whose sum is σ = 75499760. Its totient is φ = 58242240.

The previous prime is 66601279. The next prime is 66601351. The reversal of 66601327 is 72310666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66601327 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 (66601357) 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, 134574 + ... + 135067.

It is an arithmetic number, because the mean of its divisors is an integer number (9437470).

Almost surely, 2^66601327 is an apocalyptic number.

66601327 is a deficient number, since it is larger than the sum of its proper divisors (8898433).

66601327 is a wasteful number, since it uses less digits than its factorization.

66601327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269673.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 66601327 is about 8160.9636073199. The cubic root of 66601327 is about 405.3476200534.

The spelling of 66601327 in words is "sixty-six million, six hundred one thousand, three hundred twenty-seven".