66357063447 has 8 divisors (see below), whose sum is σ = 88531079280. Its totient is φ = 44210544960.

The previous prime is 66357063433. The next prime is 66357063449. The reversal of 66357063447 is 74436075366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66357063447 - 2⁸ = 66357063191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66357063447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66357063449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868704 + ... + 6878357.

It is an arithmetic number, because the mean of its divisors is an integer number (11066384910).

Almost surely, 2^66357063447 is an apocalyptic number.

66357063447 is a deficient number, since it is larger than the sum of its proper divisors (22174015833).

66357063447 is a wasteful number, since it uses less digits than its factorization.

66357063447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13748673.

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

The spelling of 66357063447 in words is "sixty-six billion, three hundred fifty-seven million, sixty-three thousand, four hundred forty-seven".