2054128168 has 16 divisors (see below), whose sum is σ = 3868312500. Its totient is φ = 1022578176.

The previous prime is 2054128157. The next prime is 2054128177. The reversal of 2054128168 is 8618214502.

It can be written as a sum of positive squares in 2 ways, for example, as 2053721124 + 407044 = 45318^2 + 638^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558793 + ... + 562456.

Almost surely, 2^2054128168 is an apocalyptic number.

It is an amenable number.

2054128168 is a deficient number, since it is larger than the sum of its proper divisors (1814184332).

2054128168 is a wasteful number, since it uses less digits than its factorization.

2054128168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121484 (or 1121480 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2054128168 is about 45322.4907523847. The cubic root of 2054128168 is about 1271.1862287665.

The spelling of 2054128168 in words is "two billion, fifty-four million, one hundred twenty-eight thousand, one hundred sixty-eight".