66346242 has 8 divisors (see below), whose sum is σ = 132692496. Its totient is φ = 22115412.

The previous prime is 66346219. The next prime is 66346249. The reversal of 66346242 is 24264366.

66346242 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.

66346242 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66346249) 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 3 ways as a sum of consecutive naturals, for example, 5528848 + ... + 5528859.

It is an arithmetic number, because the mean of its divisors is an integer number (16586562).

Almost surely, 2^66346242 is an apocalyptic number.

66346242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66346242 is a wasteful number, since it uses less digits than its factorization.

66346242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11057712.

The product of its digits is 41472, while the sum is 33.

The square root of 66346242 is about 8145.3202515309. The cubic root of 66346242 is about 404.8294602818.

The spelling of 66346242 in words is "sixty-six million, three hundred forty-six thousand, two hundred forty-two".