66046742 has 8 divisors (see below), whose sum is σ = 99158232. Its totient is φ = 32994000.

The previous prime is 66046733. The next prime is 66046769. The reversal of 66046742 is 24764066.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11759 + ... + 16442.

It is an arithmetic number, because the mean of its divisors is an integer number (12394779).

Almost surely, 2^66046742 is an apocalyptic number.

66046742 is a deficient number, since it is larger than the sum of its proper divisors (33111490).

66046742 is a wasteful number, since it uses less digits than its factorization.

66046742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29374.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 66046742 is about 8126.9146667109. The cubic root of 66046742 is about 404.2193813884.

The spelling of 66046742 in words is "sixty-six million, forty-six thousand, seven hundred forty-two".