168343435836 has 24 divisors (see below), whose sum is σ = 436445945040. Its totient is φ = 56114478576.

The previous prime is 168343435817. The next prime is 168343435889. The reversal of 168343435836 is 638534343861.

168343435836 is a `hidden beast` number, since 16 + 8 + 3 + 4 + 3 + 43 + 583 + 6 = 666.

168343435836 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779367651 + ... + 779367866.

It is an arithmetic number, because the mean of its divisors is an integer number (18185247710).

Almost surely, 2^168343435836 is an apocalyptic number.

It is an amenable number.

168343435836 is an abundant number, since it is smaller than the sum of its proper divisors (268102509204).

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

168343435836 is a wasteful number, since it uses less digits than its factorization.

168343435836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558735530 (or 1558735522 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 54.

The spelling of 168343435836 in words is "one hundred sixty-eight billion, three hundred forty-three million, four hundred thirty-five thousand, eight hundred thirty-six".