27772027066 has 16 divisors (see below), whose sum is σ = 47641855680. Its totient is φ = 11894130720.

The previous prime is 27772027039. The next prime is 27772027069. The reversal of 27772027066 is 66072027772.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27772027069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659395 + ... + 700246.

It is an arithmetic number, because the mean of its divisors is an integer number (2977615980).

Almost surely, 2^27772027066 is an apocalyptic number.

27772027066 is a deficient number, since it is larger than the sum of its proper divisors (19869828614).

27772027066 is a wasteful number, since it uses less digits than its factorization.

27772027066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361109.

The product of its (nonzero) digits is 691488, while the sum is 46.

The spelling of 27772027066 in words is "twenty-seven billion, seven hundred seventy-two million, twenty-seven thousand, sixty-six".