168949165 has 16 divisors (see below), whose sum is σ = 252766080. Its totient is φ = 105318720.

The previous prime is 168949147. The next prime is 168949171. The reversal of 168949165 is 561949861.

It is a de Polignac number, because none of the positive numbers 2^k-168949165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219030 + ... + 219799.

It is an arithmetic number, because the mean of its divisors is an integer number (15797880).

Almost surely, 2^168949165 is an apocalyptic number.

It is an amenable number.

168949165 is a deficient number, since it is larger than the sum of its proper divisors (83816915).

168949165 is a wasteful number, since it uses less digits than its factorization.

168949165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438852.

The product of its digits is 466560, while the sum is 49.

The square root of 168949165 is about 12998.0446606403. The cubic root of 168949165 is about 552.8220408447.

The spelling of 168949165 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, one hundred sixty-five".