168806844442368 has 108 divisors (see below), whose sum is σ = 530958270738168. Its totient is φ = 51153589217280.

The previous prime is 168806844442331. The next prime is 168806844442393. The reversal of 168806844442368 is 863244448608861.

168806844442368 is a `hidden beast` number, since 1 + 6 + 8 + 80 + 6 + 8 + 44 + 442 + 3 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 168806844442296 and 168806844442305.

It is a congruent number.

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, 3330286455 + ... + 3330337142.

Almost surely, 2^{168806844442368} is an apocalyptic number.

168806844442368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168806844442368 is an abundant number, since it is smaller than the sum of its proper divisors (362151426295800).

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

168806844442368 is a wasteful number, since it uses less digits than its factorization.

168806844442368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660623630 (or 6660623613 counting only the distinct ones).

The product of its (nonzero) digits is 1358954496, while the sum is 72.

The spelling of 168806844442368 in words is "one hundred sixty-eight trillion, eight hundred six billion, eight hundred forty-four million, four hundred forty-two thousand, three hundred sixty-eight".