2568512161 has 8 divisors (see below), whose sum is σ = 2652113664. Its totient is φ = 2484957360.

The previous prime is 2568512119. The next prime is 2568512173. The reversal of 2568512161 is 1612158652.

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 2568512161 - 2⁷ = 2568512033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2568512161.

It is not an unprimeable number, because it can be changed into a prime (2568512461) 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, 126090 + ... + 145036.

It is an arithmetic number, because the mean of its divisors is an integer number (331514208).

Almost surely, 2^2568512161 is an apocalyptic number.

It is an amenable number.

2568512161 is a deficient number, since it is larger than the sum of its proper divisors (83601503).

2568512161 is a wasteful number, since it uses less digits than its factorization.

2568512161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23351.

The product of its digits is 28800, while the sum is 37.

The square root of 2568512161 is about 50680.4909309292. The cubic root of 2568512161 is about 1369.4952872943.

The spelling of 2568512161 in words is "two billion, five hundred sixty-eight million, five hundred twelve thousand, one hundred sixty-one".