255134121105540 has 48 divisors (see below), whose sum is σ = 720697446540288. Its totient is φ = 67433679204864.

The previous prime is 255134121105517. The next prime is 255134121105631. The reversal of 255134121105540 is 45501121431552.

It is an unprimeable number.

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, 18815193892 + ... + 18815207451.

It is an arithmetic number, because the mean of its divisors is an integer number (15014530136256).

Almost surely, 2^{255134121105540} is an apocalyptic number.

255134121105540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255134121105540 is an abundant number, since it is smaller than the sum of its proper divisors (465563325434748).

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

255134121105540 is a wasteful number, since it uses less digits than its factorization.

255134121105540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37630401468 (or 37630401466 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

It can be divided in two parts, 2551341 and 21105540, that added together give a triangular number (23656881 = T₆₈₇₈).

The spelling of 255134121105540 in words is "two hundred fifty-five trillion, one hundred thirty-four billion, one hundred twenty-one million, one hundred five thousand, five hundred forty".