16943947266168 has 48 divisors (see below), whose sum is σ = 49419846195720. Its totient is φ = 5213522235456.

The previous prime is 16943947266167. The next prime is 16943947266179. The reversal of 16943947266168 is 86166274934961.

16943947266168 is a `hidden beast` number, since 1 + 6 + 9 + 4 + 39 + 472 + 6 + 61 + 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 = 16943947266096 and 16943947266105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16943947266167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9051252946 + ... + 9051254817.

Almost surely, 2^{16943947266168} is an apocalyptic number.

16943947266168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16943947266168 is an abundant number, since it is smaller than the sum of its proper divisors (32475898929552).

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

16943947266168 is a wasteful number, since it uses less digits than its factorization.

16943947266168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18102507788 (or 18102507781 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 16943947266168 in words is "sixteen trillion, nine hundred forty-three billion, nine hundred forty-seven million, two hundred sixty-six thousand, one hundred sixty-eight".