42274121666 has 16 divisors (see below), whose sum is σ = 72505688640. Its totient is φ = 18108539280.

The previous prime is 42274121627. The next prime is 42274121707. The reversal of 42274121666 is 66612147224.

It is a happy number.

It is a Curzon 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, 715700 + ... + 772511.

It is an arithmetic number, because the mean of its divisors is an integer number (4531605540).

Almost surely, 2^42274121666 is an apocalyptic number.

42274121666 is a deficient number, since it is larger than the sum of its proper divisors (30231566974).

42274121666 is a wasteful number, since it uses less digits than its factorization.

42274121666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490249.

The product of its digits is 193536, while the sum is 41.

The spelling of 42274121666 in words is "forty-two billion, two hundred seventy-four million, one hundred twenty-one thousand, six hundred sixty-six".