168116353 has 4 divisors (see below), whose sum is σ = 168206148. Its totient is φ = 168026560.

The previous prime is 168116341. The next prime is 168116357. The reversal of 168116353 is 353611861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353611861 = 191 ⋅1851371.

It can be written as a sum of positive squares in 2 ways, for example, as 132987024 + 35129329 = 11532^2 + 5927^2 .

It is a cyclic number.

It is not a de Polignac number, because 168116353 - 2²¹ = 166019201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168116357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42028 + ... + 45853.

It is an arithmetic number, because the mean of its divisors is an integer number (42051537).

Almost surely, 2^168116353 is an apocalyptic number.

It is an amenable number.

168116353 is a deficient number, since it is larger than the sum of its proper divisors (89795).

168116353 is an equidigital number, since it uses as much as digits as its factorization.

168116353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89794.

The product of its digits is 12960, while the sum is 34.

The square root of 168116353 is about 12965.9690343607. The cubic root of 168116353 is about 551.9121904450.

The spelling of 168116353 in words is "one hundred sixty-eight million, one hundred sixteen thousand, three hundred fifty-three".