1255368172128 has 192 divisors, whose sum is σ = 3899358167040. Its totient is φ = 346055846400.

The previous prime is 1255368172117. The next prime is 1255368172147. The reversal of 1255368172128 is 8212718635521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6804363 + ... + 6986421.

It is an arithmetic number, because the mean of its divisors is an integer number (20309157120).

Almost surely, 2^{1255368172128} 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 1255368172128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1949679083520).

1255368172128 is an abundant number, since it is smaller than the sum of its proper divisors (2643989994912).

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

1255368172128 is a wasteful number, since it uses less digits than its factorization.

1255368172128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182441 (or 182433 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The spelling of 1255368172128 in words is "one trillion, two hundred fifty-five billion, three hundred sixty-eight million, one hundred seventy-two thousand, one hundred twenty-eight".