66422106242 has 6 divisors (see below), whose sum is σ = 99633706083. Its totient is φ = 33210870882.

The previous prime is 66422106239. The next prime is 66422106269. The reversal of 66422106242 is 24260122466.

It can be written as a sum of positive squares in only one way, i.e., 33211053121 + 33211053121 = 182239^2 + 182239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=182239.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 273359 + ... + 455597.

Almost surely, 2^66422106242 is an apocalyptic number.

66422106242 is a deficient number, since it is larger than the sum of its proper divisors (33211599841).

66422106242 is an frugal number, since it uses more digits than its factorization.

66422106242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364480 (or 182241 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 66422106242 in words is "sixty-six billion, four hundred twenty-two million, one hundred six thousand, two hundred forty-two".