168444593118 has 56 divisors (see below), whose sum is σ = 384162865776. Its totient is φ = 55357344000.

The previous prime is 168444593099. The next prime is 168444593129. The reversal of 168444593118 is 811395444861.

168444593118 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 44 + 593 + 1 + 1 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 710083 + ... + 917118.

Almost surely, 2^168444593118 is an apocalyptic number.

168444593118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

168444593118 is an abundant number, since it is smaller than the sum of its proper divisors (215718272658).

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

168444593118 is an equidigital number, since it uses as much as digits as its factorization.

168444593118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627292 (or 1627277 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 168444593118 in words is "one hundred sixty-eight billion, four hundred forty-four million, five hundred ninety-three thousand, one hundred eighteen".