2566134601 has 4 divisors (see below), whose sum is σ = 2566236292. Its totient is φ = 2566032912.

The previous prime is 2566134589. The next prime is 2566134653. The reversal of 2566134601 is 1064316652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1082344201 + 1483790400 = 32899^2 + 38520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2566134601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566134671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18871 + ... + 74083.

It is an arithmetic number, because the mean of its divisors is an integer number (641559073).

Almost surely, 2^2566134601 is an apocalyptic number.

It is an amenable number.

2566134601 is a deficient number, since it is larger than the sum of its proper divisors (101691).

2566134601 is an equidigital number, since it uses as much as digits as its factorization.

2566134601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101690.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2566134601 is about 50657.0291371296. The cubic root of 2566134601 is about 1369.0725961030.

The spelling of 2566134601 in words is "two billion, five hundred sixty-six million, one hundred thirty-four thousand, six hundred one".