66226444718 has 16 divisors (see below), whose sum is σ = 113707628160. Its totient is φ = 28338617016.

The previous prime is 66226444709. The next prime is 66226444729. The reversal of 66226444718 is 81744462266.

It is a congruent number.

It is an unprimeable number.

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, 3669428 + ... + 3687431.

It is an arithmetic number, because the mean of its divisors is an integer number (7106726760).

Almost surely, 2^66226444718 is an apocalyptic number.

66226444718 is a deficient number, since it is larger than the sum of its proper divisors (47481183442).

66226444718 is a wasteful number, since it uses less digits than its factorization.

66226444718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357511.

The product of its digits is 3096576, while the sum is 50.

The spelling of 66226444718 in words is "sixty-six billion, two hundred twenty-six million, four hundred forty-four thousand, seven hundred eighteen".