168633361 has 4 divisors (see below), whose sum is σ = 181605172. Its totient is φ = 155661552.

The previous prime is 168633359. The next prime is 168633371. The reversal of 168633361 is 163336861.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64899136 + 103734225 = 8056^2 + 10185^2 .

It is a cyclic number.

It is not a de Polignac number, because 168633361 - 2¹ = 168633359 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 168633361.

It is not an unprimeable number, because it can be changed into a prime (168633301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6485886 + ... + 6485911.

It is an arithmetic number, because the mean of its divisors is an integer number (45401293).

Almost surely, 2^168633361 is an apocalyptic number.

It is an amenable number.

168633361 is a deficient number, since it is larger than the sum of its proper divisors (12971811).

168633361 is a wasteful number, since it uses less digits than its factorization.

168633361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971810.

The product of its digits is 46656, while the sum is 37.

The square root of 168633361 is about 12985.8908435271. The cubic root of 168633361 is about 552.4773764137.

The spelling of 168633361 in words is "one hundred sixty-eight million, six hundred thirty-three thousand, three hundred sixty-one".