255371130539520 has 160 divisors (see below), whose sum is σ = 816449238582912. Its totient is φ = 68093991985152.

The previous prime is 255371130539423. The next prime is 255371130539521. The reversal of 255371130539520 is 25935031173552.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255371130539521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104491839 + ... + 106907841.

Almost surely, 2^{255371130539520} is an apocalyptic number.

255371130539520 is a gapful number since it is divisible by the number (20) 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 255371130539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408224619291456).

255371130539520 is an abundant number, since it is smaller than the sum of its proper divisors (561078108043392).

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

255371130539520 is a wasteful number, since it uses less digits than its factorization.

255371130539520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429792 (or 2429776 counting only the distinct ones).

The product of its (nonzero) digits is 4252500, while the sum is 51.

The spelling of 255371130539520 in words is "two hundred fifty-five trillion, three hundred seventy-one billion, one hundred thirty million, five hundred thirty-nine thousand, five hundred twenty".