168256167 has 16 divisors (see below), whose sum is σ = 228780768. Its totient is φ = 109969920.

The previous prime is 168256163. The next prime is 168256181. The reversal of 168256167 is 761652861.

It is not a de Polignac number, because 168256167 - 2² = 168256163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168256163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35667 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (14298798).

Almost surely, 2^168256167 is an apocalyptic number.

168256167 is a deficient number, since it is larger than the sum of its proper divisors (60524601).

168256167 is a wasteful number, since it uses less digits than its factorization.

168256167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690.

The product of its digits is 120960, while the sum is 42.

The square root of 168256167 is about 12971.3594892748. The cubic root of 168256167 is about 552.0651473467.

The spelling of 168256167 in words is "one hundred sixty-eight million, two hundred fifty-six thousand, one hundred sixty-seven".