168964140673 has 8 divisors (see below), whose sum is σ = 169104813696. Its totient is φ = 168823525200.

The previous prime is 168964140661. The next prime is 168964140721. The reversal of 168964140673 is 376041469861.

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

It is a cyclic number.

It is not a de Polignac number, because 168964140673 - 2²⁹ = 168427269761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168964140973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7343415 + ... + 7366387.

It is an arithmetic number, because the mean of its divisors is an integer number (21138101712).

Almost surely, 2^168964140673 is an apocalyptic number.

It is an amenable number.

168964140673 is a deficient number, since it is larger than the sum of its proper divisors (140673023).

168964140673 is a wasteful number, since it uses less digits than its factorization.

168964140673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28775.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 168964140673 in words is "one hundred sixty-eight billion, nine hundred sixty-four million, one hundred forty thousand, six hundred seventy-three".