2585874166 has 4 divisors (see below), whose sum is σ = 3878811252. Its totient is φ = 1292937082.

The previous prime is 2585874149. The next prime is 2585874197. The reversal of 2585874166 is 6614785852.

It is a happy number.

2585874166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646468540 + ... + 646468543.

It is an arithmetic number, because the mean of its divisors is an integer number (969702813).

Almost surely, 2^2585874166 is an apocalyptic number.

2585874166 is a deficient number, since it is larger than the sum of its proper divisors (1292937086).

2585874166 is a wasteful number, since it uses less digits than its factorization.

2585874166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292937085.

The product of its digits is 3225600, while the sum is 52.

The square root of 2585874166 is about 50851.4912859004. The cubic root of 2585874166 is about 1372.5740878362.

The spelling of 2585874166 in words is "two billion, five hundred eighty-five million, eight hundred seventy-four thousand, one hundred sixty-six".