168255012240 has 960 divisors, whose sum is σ = 732810240000. Its totient is φ = 35245808640.

The previous prime is 168255012197. The next prime is 168255012253. The reversal of 168255012240 is 42210552861.

168255012240 is a `hidden beast` number, since 1 + 6 + 82 + 550 + 1 + 2 + 24 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 168255012195 and 168255012204.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 62338411 + ... + 62341109.

It is an arithmetic number, because the mean of its divisors is an integer number (763344000).

Almost surely, 2^168255012240 is an apocalyptic number.

168255012240 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 168255012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366405120000).

168255012240 is an abundant number, since it is smaller than the sum of its proper divisors (564555227760).

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

168255012240 is a wasteful number, since it uses less digits than its factorization.

168255012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 168255012240 in words is "one hundred sixty-eight billion, two hundred fifty-five million, twelve thousand, two hundred forty".