66450895826 has 8 divisors (see below), whose sum is σ = 113915821440. Its totient is φ = 28478955348.

The previous prime is 66450895807. The next prime is 66450895867. The reversal of 66450895826 is 62859805466.

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 2373246266 + ... + 2373246293.

It is an arithmetic number, because the mean of its divisors is an integer number (14239477680).

Almost surely, 2^66450895826 is an apocalyptic number.

66450895826 is a deficient number, since it is larger than the sum of its proper divisors (47464925614).

66450895826 is a wasteful number, since it uses less digits than its factorization.

66450895826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746492568.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 66450895826 in words is "sixty-six billion, four hundred fifty million, eight hundred ninety-five thousand, eight hundred twenty-six".