9665679167 has 4 divisors (see below), whose sum is σ = 9680041920. Its totient is φ = 9651316416.

The previous prime is 9665679143. The next prime is 9665679173. The reversal of 9665679167 is 7619765669.

9665679167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9665679167 - 2¹⁶ = 9665613631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9665679187) 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 3 ways as a sum of consecutive naturals, for example, 7180367 + ... + 7181712.

It is an arithmetic number, because the mean of its divisors is an integer number (2420010480).

Almost surely, 2^9665679167 is an apocalyptic number.

9665679167 is a deficient number, since it is larger than the sum of its proper divisors (14362753).

9665679167 is a wasteful number, since it uses less digits than its factorization.

9665679167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14362752.

The product of its digits is 25719120, while the sum is 62.

The square root of 9665679167 is about 98314.1859906290. The cubic root of 9665679167 is about 2130.1529691693.

The spelling of 9665679167 in words is "nine billion, six hundred sixty-five million, six hundred seventy-nine thousand, one hundred sixty-seven".