168165868343218 has 8 divisors (see below), whose sum is σ = 252332245726848. Its totient is φ = 84055119767604.

The previous prime is 168165868343191. The next prime is 168165868343267. The reversal of 168165868343218 is 812343868561861.

168165868343218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13907194446 + ... + 13907206537.

It is an arithmetic number, because the mean of its divisors is an integer number (31541530715856).

Almost surely, 2^{168165868343218} is an apocalyptic number.

168165868343218 is a deficient number, since it is larger than the sum of its proper divisors (84166377383630).

168165868343218 is a wasteful number, since it uses less digits than its factorization.

168165868343218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27814404008.

The product of its digits is 318504960, while the sum is 70.

The spelling of 168165868343218 in words is "one hundred sixty-eight trillion, one hundred sixty-five billion, eight hundred sixty-eight million, three hundred forty-three thousand, two hundred eighteen".