2056117165 has 8 divisors (see below), whose sum is σ = 2468401560. Its totient is φ = 1644186432.

The previous prime is 2056117163. The next prime is 2056117169. The reversal of 2056117165 is 5617116502.

It can be written as a sum of positive squares in 4 ways, for example, as 42172036 + 2013945129 = 6494^2 + 44877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2056117165 - 2¹ = 2056117163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056117165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056117163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75450 + ... + 99019.

It is an arithmetic number, because the mean of its divisors is an integer number (308550195).

Almost surely, 2^2056117165 is an apocalyptic number.

It is an amenable number.

2056117165 is a deficient number, since it is larger than the sum of its proper divisors (412284395).

2056117165 is a wasteful number, since it uses less digits than its factorization.

2056117165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176831.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2056117165 is about 45344.4281582644. The cubic root of 2056117165 is about 1271.5963897943.

The spelling of 2056117165 in words is "two billion, fifty-six million, one hundred seventeen thousand, one hundred sixty-five".