255651168 has 96 divisors (see below), whose sum is σ = 727284096. Its totient is φ = 78317568.

The previous prime is 255651161. The next prime is 255651169. The reversal of 255651168 is 861156552.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255651161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68355 + ... + 71997.

It is an arithmetic number, because the mean of its divisors is an integer number (7575876).

Almost surely, 2^255651168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255651168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363642048).

255651168 is an abundant number, since it is smaller than the sum of its proper divisors (471632928).

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

255651168 is a wasteful number, since it uses less digits than its factorization.

255651168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3708 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

The square root of 255651168 is about 15989.0952839740. The cubic root of 255651168 is about 634.6718853779.

The spelling of 255651168 in words is "two hundred fifty-five million, six hundred fifty-one thousand, one hundred sixty-eight".