66222535430312 has 16 divisors (see below), whose sum is σ = 124563954428340. Its totient is φ = 33005480916096.

The previous prime is 66222535430299. The next prime is 66222535430339. The reversal of 66222535430312 is 21303453522266.

It can be written as a sum of positive squares in 2 ways, for example, as 62317983142276 + 3904552288036 = 7894174^2 + 1975994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13223347223 + ... + 13223352230.

Almost surely, 2^{66222535430312} is an apocalyptic number.

It is an amenable number.

66222535430312 is a deficient number, since it is larger than the sum of its proper divisors (58341418998028).

66222535430312 is a wasteful number, since it uses less digits than its factorization.

66222535430312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26446699772 (or 26446699768 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

Adding to 66222535430312 its reverse (21303453522266), we get a palindrome (87525988952578).

The spelling of 66222535430312 in words is "sixty-six trillion, two hundred twenty-two billion, five hundred thirty-five million, four hundred thirty thousand, three hundred twelve".