66242706 has 32 divisors (see below), whose sum is σ = 135396096. Its totient is φ = 21600000.

The previous prime is 66242677. The next prime is 66242707. The reversal of 66242706 is 60724266.

66242706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66242707) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 87831 + ... + 88581.

It is an arithmetic number, because the mean of its divisors is an integer number (4231128).

Almost surely, 2^66242706 is an apocalyptic number.

66242706 is an abundant number, since it is smaller than the sum of its proper divisors (69153390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66242706 is a wasteful number, since it uses less digits than its factorization.

66242706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 66242706 is about 8138.9622188581. The cubic root of 66242706 is about 404.6187663841.

The spelling of 66242706 in words is "sixty-six million, two hundred forty-two thousand, seven hundred six".