66563301245 has 16 divisors (see below), whose sum is σ = 91438733568. Its totient is φ = 45567446400.

The previous prime is 66563301241. The next prime is 66563301247. The reversal of 66563301245 is 54210336566.

It is not a de Polignac number, because 66563301245 - 2² = 66563301241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66563301241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561169 + ... + 1603238.

It is an arithmetic number, because the mean of its divisors is an integer number (5714920848).

Almost surely, 2^66563301245 is an apocalyptic number.

It is an amenable number.

66563301245 is a deficient number, since it is larger than the sum of its proper divisors (24875432323).

66563301245 is a wasteful number, since it uses less digits than its factorization.

66563301245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165020.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 66563301245 in words is "sixty-six billion, five hundred sixty-three million, three hundred one thousand, two hundred forty-five".