164689658678366 has 8 divisors (see below), whose sum is σ = 255003342469824. Its totient is φ = 79688544521760.

The previous prime is 164689658678329. The next prime is 164689658678387. The reversal of 164689658678366 is 663876856986461.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1328142408635 + ... + 1328142408758.

It is an arithmetic number, because the mean of its divisors is an integer number (31875417808728).

Almost surely, 2^{164689658678366} is an apocalyptic number.

164689658678366 is a deficient number, since it is larger than the sum of its proper divisors (90313683791458).

164689658678366 is a wasteful number, since it uses less digits than its factorization.

164689658678366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656284817426.

The product of its digits is 90296156160, while the sum is 89.

The spelling of 164689658678366 in words is "one hundred sixty-four trillion, six hundred eighty-nine billion, six hundred fifty-eight million, six hundred seventy-eight thousand, three hundred sixty-six".