168342390250 has 16 divisors (see below), whose sum is σ = 315136955016. Its totient is φ = 67336956000.

The previous prime is 168342390221. The next prime is 168342390283. The reversal of 168342390250 is 52093243861.

It can be written as a sum of positive squares in 4 ways, for example, as 60353257561 + 107989132689 = 245669^2 + 328617^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168342390197 and 168342390206.

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, 336684531 + ... + 336685030.

Almost surely, 2^168342390250 is an apocalyptic number.

168342390250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168342390250 is a deficient number, since it is larger than the sum of its proper divisors (146794564766).

168342390250 is an equidigital number, since it uses as much as digits as its factorization.

168342390250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673369578 (or 673369568 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 168342390250 in words is "one hundred sixty-eight billion, three hundred forty-two million, three hundred ninety thousand, two hundred fifty".