66582707 has 8 divisors (see below), whose sum is σ = 70296000. Its totient is φ = 62890344.

The previous prime is 66582689. The next prime is 66582709. The reversal of 66582707 is 70728566.

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 a de Polignac number, because none of the positive numbers 2^k-66582707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66582709) 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, 1544 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (8787000).

Almost surely, 2^66582707 is an apocalyptic number.

66582707 is a deficient number, since it is larger than the sum of its proper divisors (3713293).

66582707 is a wasteful number, since it uses less digits than its factorization.

66582707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10465.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 66582707 is about 8159.8227309176. The cubic root of 66582707 is about 405.3098416461.

The spelling of 66582707 in words is "sixty-six million, five hundred eighty-two thousand, seven hundred seven".