255387434125161 has 16 divisors (see below), whose sum is σ = 367308383978816. Its totient is φ = 156905116998336.

The previous prime is 255387434125111. The next prime is 255387434125163. The reversal of 255387434125161 is 161521434783552.

It is not a de Polignac number, because 255387434125161 - 2³⁰ = 255386360383337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255387434125163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5341245055 + ... + 5341292868.

It is an arithmetic number, because the mean of its divisors is an integer number (22956773998676).

Almost surely, 2^{255387434125161} is an apocalyptic number.

It is an amenable number.

255387434125161 is a deficient number, since it is larger than the sum of its proper divisors (111920949853655).

255387434125161 is a wasteful number, since it uses less digits than its factorization.

255387434125161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682538552.

The product of its digits is 24192000, while the sum is 57.

The spelling of 255387434125161 in words is "two hundred fifty-five trillion, three hundred eighty-seven billion, four hundred thirty-four million, one hundred twenty-five thousand, one hundred sixty-one".