168383643 has 16 divisors (see below), whose sum is σ = 236661120. Its totient is φ = 106197696.

The previous prime is 168383617. The next prime is 168383647. The reversal of 168383643 is 346383861.

It is not a de Polignac number, because 168383643 - 2¹⁰ = 168382619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168383595 and 168383604.

It is not an unprimeable number, because it can be changed into a prime (168383647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50071 + ... + 53327.

It is an arithmetic number, because the mean of its divisors is an integer number (14791320).

Almost surely, 2^168383643 is an apocalyptic number.

168383643 is a deficient number, since it is larger than the sum of its proper divisors (68277477).

168383643 is a wasteful number, since it uses less digits than its factorization.

168383643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4186.

The product of its digits is 248832, while the sum is 42.

The square root of 168383643 is about 12976.2723075620. The cubic root of 168383643 is about 552.2045326120.

The spelling of 168383643 in words is "one hundred sixty-eight million, three hundred eighty-three thousand, six hundred forty-three".