257201646116 has 12 divisors (see below), whose sum is σ = 456442358400. Its totient is φ = 126789543720.

The previous prime is 257201646059. The next prime is 257201646131. The reversal of 257201646116 is 611646102752.

257201646116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452819516 + ... + 452820083.

It is an arithmetic number, because the mean of its divisors is an integer number (38036863200).

Almost surely, 2^257201646116 is an apocalyptic number.

It is an amenable number.

257201646116 is a deficient number, since it is larger than the sum of its proper divisors (199240712284).

257201646116 is a wasteful number, since it uses less digits than its factorization.

257201646116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905639674 (or 905639672 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

Adding to 257201646116 its reverse (611646102752), we get a palindrome (868847748868).

The spelling of 257201646116 in words is "two hundred fifty-seven billion, two hundred one million, six hundred forty-six thousand, one hundred sixteen".