168700216320 has 440 divisors, whose sum is σ = 609476465664. Its totient is φ = 44618563584.

The previous prime is 168700216277. The next prime is 168700216327. The reversal of 168700216320 is 23612007861.

168700216320 is a `hidden beast` number, since 16 + 8 + 7 + 0 + 0 + 2 + 1 + 632 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (168700216327) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52667839 + ... + 52671041.

Almost surely, 2^168700216320 is an apocalyptic number.

168700216320 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 168700216320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304738232832).

168700216320 is an abundant number, since it is smaller than the sum of its proper divisors (440776249344).

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

168700216320 is a wasteful number, since it uses less digits than its factorization.

168700216320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367 (or 3340 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 168700216320 in words is "one hundred sixty-eight billion, seven hundred million, two hundred sixteen thousand, three hundred twenty".