9662566652678 has 16 divisors (see below), whose sum is σ = 14599743404400. Its totient is φ = 4796023826016.

The previous prime is 9662566652617. The next prime is 9662566652699. The reversal of 9662566652678 is 8762566652669.

It is a congruent 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, 9071600 + ... + 10080627.

It is an arithmetic number, because the mean of its divisors is an integer number (912483962775).

Almost surely, 2^{9662566652678} is an apocalyptic number.

9662566652678 is a deficient number, since it is larger than the sum of its proper divisors (4937176751722).

9662566652678 is a wasteful number, since it uses less digits than its factorization.

9662566652678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19154071.

The product of its digits is 2351462400, while the sum is 74.

Subtracting from 9662566652678 its reverse (8762566652669), we obtain a palindrome (900000000009).

The spelling of 9662566652678 in words is "nine trillion, six hundred sixty-two billion, five hundred sixty-six million, six hundred fifty-two thousand, six hundred seventy-eight".