168853530305 has 4 divisors (see below), whose sum is σ = 202624236372. Its totient is φ = 135082824240.

The previous prime is 168853530257. The next prime is 168853530317. The reversal of 168853530305 is 503035358861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503035358861 = 7 ⋅71862194123.

It can be written as a sum of positive squares in 2 ways, for example, as 89500893889 + 79352636416 = 299167^2 + 281696^2 .

It is not a de Polignac number, because 168853530305 - 2²² = 168849336001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168853530305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16885353026 + ... + 16885353035.

It is an arithmetic number, because the mean of its divisors is an integer number (50656059093).

Almost surely, 2^168853530305 is an apocalyptic number.

It is an amenable number.

168853530305 is a deficient number, since it is larger than the sum of its proper divisors (33770706067).

168853530305 is an equidigital number, since it uses as much as digits as its factorization.

168853530305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33770706066.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 168853530305 in words is "one hundred sixty-eight billion, eight hundred fifty-three million, five hundred thirty thousand, three hundred five".