66254441222 has 16 divisors (see below), whose sum is σ = 99856553760. Its totient is φ = 32969184192.

The previous prime is 66254441189. The next prime is 66254441273. The reversal of 66254441222 is 22214445266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448103 + ... + 577325.

It is an arithmetic number, because the mean of its divisors is an integer number (6241034610).

Almost surely, 2^66254441222 is an apocalyptic number.

66254441222 is a deficient number, since it is larger than the sum of its proper divisors (33602112538).

66254441222 is a wasteful number, since it uses less digits than its factorization.

66254441222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130447.

The product of its digits is 184320, while the sum is 38.

Adding to 66254441222 its reverse (22214445266), we get a palindrome (88468886488).

The spelling of 66254441222 in words is "sixty-six billion, two hundred fifty-four million, four hundred forty-one thousand, two hundred twenty-two".