66079945 has 16 divisors (see below), whose sum is σ = 80847360. Its totient is φ = 51839424.

The previous prime is 66079933. The next prime is 66079961. The reversal of 66079945 is 54997066.

66079945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 66079945 - 2¹¹ = 66077897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66079895 and 66079904.

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 15 ways as a sum of consecutive naturals, for example, 67852 + ... + 68818.

It is an arithmetic number, because the mean of its divisors is an integer number (5052960).

Almost surely, 2^66079945 is an apocalyptic number.

It is an amenable number.

66079945 is a deficient number, since it is larger than the sum of its proper divisors (14767415).

66079945 is a wasteful number, since it uses less digits than its factorization.

66079945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 66079945 is about 8128.9571901936. The cubic root of 66079945 is about 404.2871063929.

The spelling of 66079945 in words is "sixty-six million, seventy-nine thousand, nine hundred forty-five".