168986039400 has 288 divisors, whose sum is σ = 592305735840. Its totient is φ = 44773896960.

The previous prime is 168986039393. The next prime is 168986039429. The reversal of 168986039400 is 4930689861.

168986039400 is a `hidden beast` number, since 1 + 68 + 98 + 60 + 39 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7619127 + ... + 7641273.

Almost surely, 2^168986039400 is an apocalyptic number.

168986039400 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 168986039400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296152867920).

168986039400 is an abundant number, since it is smaller than the sum of its proper divisors (423319696440).

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

168986039400 is a wasteful number, since it uses less digits than its factorization.

168986039400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22335 (or 22314 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 168986039400 in words is "one hundred sixty-eight billion, nine hundred eighty-six million, thirty-nine thousand, four hundred".