168454441000 has 48 divisors (see below), whose sum is σ = 394213765140. Its totient is φ = 67376584800.

The previous prime is 168454440949. The next prime is 168454441019. The reversal of 168454441000 is 144454861.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 113875202116 + 54579238884 = 337454^2 + 233622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12972511 + ... + 12985489.

Almost surely, 2^168454441000 is an apocalyptic number.

168454441000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168454441000 is an abundant number, since it is smaller than the sum of its proper divisors (225759324140).

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

168454441000 is an frugal number, since it uses more digits than its factorization.

168454441000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25979 (or 12986 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

Adding to 168454441000 its reverse (144454861), we get a palindrome (168598895861).

The spelling of 168454441000 in words is "one hundred sixty-eight billion, four hundred fifty-four million, four hundred forty-one thousand".