66336077445 has 24 divisors (see below), whose sum is σ = 116663782368. Its totient is φ = 32162945760.

The previous prime is 66336077407. The next prime is 66336077491. The reversal of 66336077445 is 54477063366.

It is not a de Polignac number, because 66336077445 - 2⁷ = 66336077317 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18272587 + ... + 18276216.

It is an arithmetic number, because the mean of its divisors is an integer number (4860990932).

Almost surely, 2^66336077445 is an apocalyptic number.

It is an amenable number.

66336077445 is a deficient number, since it is larger than the sum of its proper divisors (50327704923).

66336077445 is a wasteful number, since it uses less digits than its factorization.

66336077445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36548833 (or 36548822 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 51.

The spelling of 66336077445 in words is "sixty-six billion, three hundred thirty-six million, seventy-seven thousand, four hundred forty-five".