168505079434 has 8 divisors (see below), whose sum is σ = 252828212868. Its totient is φ = 84229008480.

The previous prime is 168505079419. The next prime is 168505079437. The reversal of 168505079434 is 434970505861.

It can be written as a sum of positive squares in 2 ways, for example, as 142034765625 + 26470313809 = 376875^2 + 162697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (168505079437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11756667 + ... + 11770990.

Almost surely, 2^168505079434 is an apocalyptic number.

168505079434 is a deficient number, since it is larger than the sum of its proper divisors (84323133434).

168505079434 is a wasteful number, since it uses less digits than its factorization.

168505079434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23531240.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 168505079434 in words is "one hundred sixty-eight billion, five hundred five million, seventy-nine thousand, four hundred thirty-four".