66488336826 has 8 divisors (see below), whose sum is σ = 132976673664. Its totient is φ = 22162778940.

The previous prime is 66488336753. The next prime is 66488336851. The reversal of 66488336826 is 62863388466.

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

66488336826 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66488336826.

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 3 ways as a sum of consecutive naturals, for example, 5540694730 + ... + 5540694741.

It is an arithmetic number, because the mean of its divisors is an integer number (16622084208).

Almost surely, 2^66488336826 is an apocalyptic number.

66488336826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66488336826 is a wasteful number, since it uses less digits than its factorization.

66488336826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081389476.

The product of its digits is 47775744, while the sum is 60.

The spelling of 66488336826 in words is "sixty-six billion, four hundred eighty-eight million, three hundred thirty-six thousand, eight hundred twenty-six".