66241065 has 32 divisors (see below), whose sum is σ = 115986816. Its totient is φ = 32015360.

The previous prime is 66241039. The next prime is 66241093. The reversal of 66241065 is 56014266.

66241065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66241065 - 2⁵ = 66241033 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 97507 + ... + 98183.

It is an arithmetic number, because the mean of its divisors is an integer number (3624588).

Almost surely, 2^66241065 is an apocalyptic number.

It is an amenable number.

66241065 is a deficient number, since it is larger than the sum of its proper divisors (49745751).

66241065 is a wasteful number, since it uses less digits than its factorization.

66241065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66241065 is about 8138.8614068554. The cubic root of 66241065 is about 404.6154252118.

The spelling of 66241065 in words is "sixty-six million, two hundred forty-one thousand, sixty-five".