168601630105 has 8 divisors (see below), whose sum is σ = 202672604232. Its totient is φ = 134647538688.

The previous prime is 168601630069. The next prime is 168601630123. The reversal of 168601630105 is 501036106861.

It can be written as a sum of positive squares in 4 ways, for example, as 120950232841 + 47651397264 = 347779^2 + 218292^2 .

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 168601630105 - 2¹⁵ = 168601597337 is a prime.

It is a super-4 number, since 4×168601630105⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29217502 + ... + 29223271.

It is an arithmetic number, because the mean of its divisors is an integer number (25334075529).

Almost surely, 2^168601630105 is an apocalyptic number.

It is an amenable number.

168601630105 is a deficient number, since it is larger than the sum of its proper divisors (34070974127).

168601630105 is an equidigital number, since it uses as much as digits as its factorization.

168601630105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58441355.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 168601630105 its reverse (501036106861), we get a palindrome (669637736966).

The spelling of 168601630105 in words is "one hundred sixty-eight billion, six hundred one million, six hundred thirty thousand, one hundred five".