168082661836650 has 192 divisors, whose sum is σ = 463358383165440. Its totient is φ = 39975182956800.

The previous prime is 168082661836633. The next prime is 168082661836657. The reversal of 168082661836650 is 56638166280861.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (168082661836657) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1150681519 + ... + 1150827581.

It is an arithmetic number, because the mean of its divisors is an integer number (2413324912320).

Almost surely, 2^{168082661836650} is an apocalyptic number.

168082661836650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168082661836650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231679191582720).

168082661836650 is an abundant number, since it is smaller than the sum of its proper divisors (295275721328790).

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

168082661836650 is a wasteful number, since it uses less digits than its factorization.

168082661836650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159301 (or 159296 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 66.

The spelling of 168082661836650 in words is "one hundred sixty-eight trillion, eighty-two billion, six hundred sixty-one million, eight hundred thirty-six thousand, six hundred fifty".