257068168 has 16 divisors (see below), whose sum is σ = 550860480. Its totient is φ = 110172048.

The previous prime is 257068159. The next prime is 257068177. The reversal of 257068168 is 861860752.

It is an interprime number because it is at equal distance from previous prime (257068159) and next prime (257068177).

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, 2295196 + ... + 2295307.

It is an arithmetic number, because the mean of its divisors is an integer number (34428780).

Almost surely, 2^257068168 is an apocalyptic number.

257068168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

257068168 is an abundant number, since it is smaller than the sum of its proper divisors (293792312).

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

257068168 is a wasteful number, since it uses less digits than its factorization.

257068168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590516 (or 4590512 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 257068168 is about 16033.3455024209. The cubic root of 257068168 is about 635.8423260626.

The spelling of 257068168 in words is "two hundred fifty-seven million, sixty-eight thousand, one hundred sixty-eight".