164766856717 has 32 divisors (see below), whose sum is σ = 176523204096. Its totient is φ = 153457920000.

The previous prime is 164766856711. The next prime is 164766856729. The reversal of 164766856717 is 717658667461.

It is a cyclic number.

It is not a de Polignac number, because 164766856717 - 2¹¹ = 164766854669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164766856711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67999968 + ... + 68002390.

It is an arithmetic number, because the mean of its divisors is an integer number (5516350128).

Almost surely, 2^164766856717 is an apocalyptic number.

It is an amenable number.

164766856717 is a deficient number, since it is larger than the sum of its proper divisors (11756347379).

164766856717 is a wasteful number, since it uses less digits than its factorization.

164766856717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3021.

The product of its digits is 71124480, while the sum is 64.

The spelling of 164766856717 in words is "one hundred sixty-four billion, seven hundred sixty-six million, eight hundred fifty-six thousand, seven hundred seventeen".