66241365 has 48 divisors (see below), whose sum is σ = 112881600. Its totient is φ = 33155584.

The previous prime is 66241339. The next prime is 66241369. The reversal of 66241365 is 56314266.

It is not a de Polignac number, because 66241365 - 2⁷ = 66241237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66241369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 744241 + ... + 744329.

It is an arithmetic number, because the mean of its divisors is an integer number (2351700).

Almost surely, 2^66241365 is an apocalyptic number.

It is an amenable number.

66241365 is a deficient number, since it is larger than the sum of its proper divisors (46640235).

66241365 is a wasteful number, since it uses less digits than its factorization.

66241365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 185 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 66241365 is about 8138.8798369309. The cubic root of 66241365 is about 404.6160360335.

The spelling of 66241365 in words is "sixty-six million, two hundred forty-one thousand, three hundred sixty-five".