66606757327 has 8 divisors (see below), whose sum is σ = 72740143440. Its totient is φ = 60486408960.

The previous prime is 66606757291. The next prime is 66606757411. The reversal of 66606757327 is 72375760666.

It is a happy number.

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 66606757327 - 2¹⁹ = 66606233039 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 (66606757127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3248748 + ... + 3269185.

It is an arithmetic number, because the mean of its divisors is an integer number (9092517930).

Almost surely, 2^66606757327 is an apocalyptic number.

66606757327 is a deficient number, since it is larger than the sum of its proper divisors (6133386113).

66606757327 is a wasteful number, since it uses less digits than its factorization.

66606757327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6518873.

The product of its (nonzero) digits is 13335840, while the sum is 55.

The spelling of 66606757327 in words is "sixty-six billion, six hundred six million, seven hundred fifty-seven thousand, three hundred twenty-seven".