257445445016 has 32 divisors (see below), whose sum is σ = 510004998000. Its totient is φ = 121494485376.

The previous prime is 257445445013. The next prime is 257445445027. The reversal of 257445445016 is 610544544752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257445445013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3107291 + ... + 3189066.

Almost surely, 2^257445445016 is an apocalyptic number.

It is an amenable number.

257445445016 is a deficient number, since it is larger than the sum of its proper divisors (252559552984).

257445445016 is a wasteful number, since it uses less digits than its factorization.

257445445016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296651 (or 6296647 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 47.

Adding to 257445445016 its reverse (610544544752), we get a palindrome (867989989768).

The spelling of 257445445016 in words is "two hundred fifty-seven billion, four hundred forty-five million, four hundred forty-five thousand, sixteen".