66601306 has 8 divisors (see below), whose sum is σ = 100376064. Its totient is φ = 33142620.

The previous prime is 66601279. The next prime is 66601351. The reversal of 66601306 is 60310666.

66601306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78490 + ... + 79333.

It is an arithmetic number, because the mean of its divisors is an integer number (12547008).

Almost surely, 2^66601306 is an apocalyptic number.

66601306 is a deficient number, since it is larger than the sum of its proper divisors (33774758).

66601306 is a wasteful number, since it uses less digits than its factorization.

66601306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158036.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 66601306 is about 8160.9623207070. The cubic root of 66601306 is about 405.3475774501.

The spelling of 66601306 in words is "sixty-six million, six hundred one thousand, three hundred six".