255778117576 has 32 divisors (see below), whose sum is σ = 490810752000. Its totient is φ = 124906615936.

The previous prime is 255778117531. The next prime is 255778117577. The reversal of 255778117576 is 675711877552.

255778117576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255778117577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529981 + ... + 890188.

It is an arithmetic number, because the mean of its divisors is an integer number (15337836000).

Almost surely, 2^255778117576 is an apocalyptic number.

It is an amenable number.

255778117576 is a deficient number, since it is larger than the sum of its proper divisors (235032634424).

255778117576 is a wasteful number, since it uses less digits than its factorization.

255778117576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420701 (or 1420697 counting only the distinct ones).

The product of its digits is 28812000, while the sum is 61.

The spelling of 255778117576 in words is "two hundred fifty-five billion, seven hundred seventy-eight million, one hundred seventeen thousand, five hundred seventy-six".