168363636383 has 4 divisors (see below), whose sum is σ = 168452766720. Its totient is φ = 168274506048.

The previous prime is 168363636367. The next prime is 168363636407. The reversal of 168363636383 is 383636363861.

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

It is a cyclic number.

It is not a de Polignac number, because 168363636383 - 2⁴ = 168363636367 is a prime.

It is a super-2 number, since 2×168363636383² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168363632383) 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, 44562335 + ... + 44566112.

It is an arithmetic number, because the mean of its divisors is an integer number (42113191680).

Almost surely, 2^168363636383 is an apocalyptic number.

168363636383 is a deficient number, since it is larger than the sum of its proper divisors (89130337).

168363636383 is an equidigital number, since it uses as much as digits as its factorization.

168363636383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89130336.

The product of its digits is 20155392, while the sum is 56.

The spelling of 168363636383 in words is "one hundred sixty-eight billion, three hundred sixty-three million, six hundred thirty-six thousand, three hundred eighty-three".