66255203063 has 8 divisors (see below), whose sum is σ = 77148916128. Its totient is φ = 55718661024.

The previous prime is 66255203059. The next prime is 66255203071. The reversal of 66255203063 is 36030255266.

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

It is a cyclic number.

It is not a de Polignac number, because 66255203063 - 2² = 66255203059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66255203093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89292356 + ... + 89293097.

It is an arithmetic number, because the mean of its divisors is an integer number (9643614516).

Almost surely, 2^66255203063 is an apocalyptic number.

66255203063 is a deficient number, since it is larger than the sum of its proper divisors (10893713065).

66255203063 is a wasteful number, since it uses less digits than its factorization.

66255203063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178585513.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 66255203063 in words is "sixty-six billion, two hundred fifty-five million, two hundred three thousand, sixty-three".