2056520168 has 16 divisors (see below), whose sum is σ = 3870982980. Its totient is φ = 1024258048.

The previous prime is 2056520161. The next prime is 2056520171. The reversal of 2056520168 is 8610256502.

It can be written as a sum of positive squares in 2 ways, for example, as 1789459204 + 267060964 = 42302^2 + 16342^2 .

It is not an unprimeable number, because it can be changed into a prime (2056520161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498071 + ... + 502182.

Almost surely, 2^2056520168 is an apocalyptic number.

It is an amenable number.

2056520168 is a deficient number, since it is larger than the sum of its proper divisors (1814462812).

2056520168 is a wasteful number, since it uses less digits than its factorization.

2056520168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000516 (or 1000512 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 2056520168 is about 45348.8717389970. The cubic root of 2056520168 is about 1271.6794628298.

The spelling of 2056520168 in words is "two billion, fifty-six million, five hundred twenty thousand, one hundred sixty-eight".