2028171106168 has 8 divisors (see below), whose sum is σ = 3802820824080. Its totient is φ = 1014085553080.

The previous prime is 2028171106151. The next prime is 2028171106207. The reversal of 2028171106168 is 8616011718202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2028171106168² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126760694128 + ... + 126760694143.

It is an arithmetic number, because the mean of its divisors is an integer number (475352603010).

Almost surely, 2^{2028171106168} is an apocalyptic number.

It is an amenable number.

2028171106168 is a deficient number, since it is larger than the sum of its proper divisors (1774649717912).

2028171106168 is a wasteful number, since it uses less digits than its factorization.

2028171106168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253521388277 (or 253521388273 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 2028171106168 in words is "two trillion, twenty-eight billion, one hundred seventy-one million, one hundred six thousand, one hundred sixty-eight".