168215334850 has 24 divisors (see below), whose sum is σ = 313719379380. Its totient is φ = 67105734720.

The previous prime is 168215334839. The next prime is 168215334857. The reversal of 168215334850 is 58433512861.

168215334850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 83619867241 + 84595467609 = 289171^2 + 290853^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168215334850.

It is not an unprimeable number, because it can be changed into a prime (168215334857) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4491145 + ... + 4528444.

Almost surely, 2^168215334850 is an apocalyptic number.

168215334850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168215334850 is a deficient number, since it is larger than the sum of its proper divisors (145504044530).

168215334850 is a wasteful number, since it uses less digits than its factorization.

168215334850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019974 (or 9019969 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 168215334850 in words is "one hundred sixty-eight billion, two hundred fifteen million, three hundred thirty-four thousand, eight hundred fifty".