66030042 has 32 divisors (see below), whose sum is σ = 147127680. Its totient is φ = 19615680.

The previous prime is 66030007. The next prime is 66030047. The reversal of 66030042 is 24003066.

It is not an unprimeable number, because it can be changed into a prime (66030047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12334 + ... + 16857.

It is an arithmetic number, because the mean of its divisors is an integer number (4597740).

Almost surely, 2^66030042 is an apocalyptic number.

66030042 is an abundant number, since it is smaller than the sum of its proper divisors (81097638).

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

66030042 is a wasteful number, since it uses less digits than its factorization.

66030042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29238.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 66030042 is about 8125.8871515669. The cubic root of 66030042 is about 404.1853093938.

The spelling of 66030042 in words is "sixty-six million, thirty thousand, forty-two", and thus it is an eban number.