1255785168 has 80 divisors (see below), whose sum is σ = 3557290176. Its totient is φ = 378577920.

The previous prime is 1255785149. The next prime is 1255785227. The reversal of 1255785168 is 8615875521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97980 + ... + 110052.

Almost surely, 2^1255785168 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 1255785168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778645088).

1255785168 is an abundant number, since it is smaller than the sum of its proper divisors (2301505008).

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

1255785168 is a wasteful number, since it uses less digits than its factorization.

1255785168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12292 (or 12286 counting only the distinct ones).

The product of its digits is 672000, while the sum is 48.

The square root of 1255785168 is about 35437.0592459363. The cubic root of 1255785168 is about 1078.8766234050.

The spelling of 1255785168 in words is "one billion, two hundred fifty-five million, seven hundred eighty-five thousand, one hundred sixty-eight".