66005341 has 4 divisors (see below), whose sum is σ = 66022684. Its totient is φ = 65988000.

The previous prime is 66005333. The next prime is 66005371. The reversal of 66005341 is 14350066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14350066 = 2 ⋅7175033.

It can be written as a sum of positive squares in 2 ways, for example, as 60388441 + 5616900 = 7771^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 66005341 - 2³ = 66005333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66005311) 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 3 ways as a sum of consecutive naturals, for example, 210 + ... + 11491.

It is an arithmetic number, because the mean of its divisors is an integer number (16505671).

Almost surely, 2^66005341 is an apocalyptic number.

It is an amenable number.

66005341 is a deficient number, since it is larger than the sum of its proper divisors (17343).

66005341 is a wasteful number, since it uses less digits than its factorization.

66005341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66005341 is about 8124.3671138126. The cubic root of 66005341 is about 404.1349029111.

The spelling of 66005341 in words is "sixty-six million, five thousand, three hundred forty-one".