168215953086720 has 1296 divisors, whose sum is σ = 731848898027520. Its totient is φ = 34919101071360.

The previous prime is 168215953086719. The next prime is 168215953086749. The reversal of 168215953086720 is 27680359512861.

168215953086720 is a `hidden beast` number, since 1 + 6 + 8 + 2 + 1 + 595 + 30 + 8 + 6 + 7 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 143 ways as a sum of consecutive naturals, for example, 10430695297 + ... + 10430711423.

Almost surely, 2^{168215953086720} is an apocalyptic number.

168215953086720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168215953086720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365924449013760).

168215953086720 is an abundant number, since it is smaller than the sum of its proper divisors (563632944940800).

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

168215953086720 is a wasteful number, since it uses less digits than its factorization.

168215953086720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17252 (or 17224 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 168215953086720 in words is "one hundred sixty-eight trillion, two hundred fifteen billion, nine hundred fifty-three million, eighty-six thousand, seven hundred twenty".