66330042 has 16 divisors (see below), whose sum is σ = 134909280. Its totient is φ = 21735152.

The previous prime is 66330041. The next prime is 66330109. The reversal of 66330042 is 24003366.

It is a junction number, because it is equal to n+sod(n) for n = 66329994 and 66330021.

It is not an unprimeable number, because it can be changed into a prime (66330041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93333 + ... + 94040.

It is an arithmetic number, because the mean of its divisors is an integer number (8431830).

Almost surely, 2^66330042 is an apocalyptic number.

66330042 is an abundant number, since it is smaller than the sum of its proper divisors (68579238).

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

66330042 is a wasteful number, since it uses less digits than its factorization.

66330042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187437.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 66330042 is about 8144.3257547817. The cubic root of 66330042 is about 404.7965080456.

The spelling of 66330042 in words is "sixty-six million, three hundred thirty thousand, forty-two".