25166131023236 has 12 divisors (see below), whose sum is σ = 50332262046528. Its totient is φ = 10785484724232.

The previous prime is 25166131023227. The next prime is 25166131023263. The reversal of 25166131023236 is 63232013166152.

25166131023236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25166131023193 and 25166131023202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449395196816 + ... + 449395196871.

It is an arithmetic number, because the mean of its divisors is an integer number (4194355170544).

Almost surely, 2^{25166131023236} is an apocalyptic number.

It is an amenable number.

25166131023236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25166131023236 is a wasteful number, since it uses less digits than its factorization.

25166131023236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898790393698 (or 898790393696 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

Adding to 25166131023236 its reverse (63232013166152), we get a palindrome (88398144189388).

The spelling of 25166131023236 in words is "twenty-five trillion, one hundred sixty-six billion, one hundred thirty-one million, twenty-three thousand, two hundred thirty-six".