1255818227328 has 192 divisors, whose sum is σ = 4133265477120. Its totient is φ = 358521292800.

The previous prime is 1255818227281. The next prime is 1255818227371. The reversal of 1255818227328 is 8237228185521.

1255818227328 is a `hidden beast` number, since 1 + 2 + 5 + 581 + 8 + 2 + 27 + 32 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10236753 + ... + 10358703.

It is an arithmetic number, because the mean of its divisors is an integer number (21527424360).

Almost surely, 2^{1255818227328} is an apocalyptic number.

1255818227328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255818227328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2066632738560).

1255818227328 is an abundant number, since it is smaller than the sum of its proper divisors (2877447249792).

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

1255818227328 is a wasteful number, since it uses less digits than its factorization.

1255818227328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123255 (or 123240 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The spelling of 1255818227328 in words is "one trillion, two hundred fifty-five billion, eight hundred eighteen million, two hundred twenty-seven thousand, three hundred twenty-eight".