168315018316836 has 24 divisors (see below), whose sum is σ = 392813794642080. Its totient is φ = 56093755833792.

The previous prime is 168315018316787. The next prime is 168315018316859. The reversal of 168315018316836 is 638613810513861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 168315018316836.

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, 1406221641 + ... + 1406341328.

It is an arithmetic number, because the mean of its divisors is an integer number (16367241443420).

Almost surely, 2^{168315018316836} is an apocalyptic number.

It is an amenable number.

168315018316836 is an abundant number, since it is smaller than the sum of its proper divisors (224498776325244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168315018316836 is a wasteful number, since it uses less digits than its factorization.

168315018316836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812567963 (or 2812567961 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 168315018316836 in words is "one hundred sixty-eight trillion, three hundred fifteen billion, eighteen million, three hundred sixteen thousand, eight hundred thirty-six".