168693163 has 4 divisors (see below), whose sum is σ = 168740208. Its totient is φ = 168646120.

The previous prime is 168693113. The next prime is 168693167. The reversal of 168693163 is 361396861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168693163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168693167) 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 3 ways as a sum of consecutive naturals, for example, 17656 + ... + 25477.

It is an arithmetic number, because the mean of its divisors is an integer number (42185052).

Almost surely, 2^168693163 is an apocalyptic number.

168693163 is a deficient number, since it is larger than the sum of its proper divisors (47045).

168693163 is an equidigital number, since it uses as much as digits as its factorization.

168693163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47044.

The product of its digits is 139968, while the sum is 43.

The square root of 168693163 is about 12988.1932153783. The cubic root of 168693163 is about 552.5426765558.

It can be divided in two parts, 1686 and 93163, that added together give a palindrome (94849).

The spelling of 168693163 in words is "one hundred sixty-eight million, six hundred ninety-three thousand, one hundred sixty-three".