168518983429 has 8 divisors (see below), whose sum is σ = 175898140992. Its totient is φ = 161144179680.

The previous prime is 168518983421. The next prime is 168518983453. The reversal of 168518983429 is 924389815861.

It is a happy number.

168518983429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 168518983429 - 2³ = 168518983421 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 (168518983421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009224 + ... + 1164289.

It is an arithmetic number, because the mean of its divisors is an integer number (21987267624).

Almost surely, 2^168518983429 is an apocalyptic number.

It is an amenable number.

168518983429 is a deficient number, since it is larger than the sum of its proper divisors (7379157563).

168518983429 is a wasteful number, since it uses less digits than its factorization.

168518983429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176907.

The product of its digits is 29859840, while the sum is 64.

The spelling of 168518983429 in words is "one hundred sixty-eight billion, five hundred eighteen million, nine hundred eighty-three thousand, four hundred twenty-nine".