255761164861775 has 24 divisors (see below), whose sum is σ = 328271812473600. Its totient is φ = 197437854588800.

The previous prime is 255761164861759. The next prime is 255761164861777. The reversal of 255761164861775 is 577168461167552.

It is not a de Polignac number, because 255761164861775 - 2⁴ = 255761164861759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255761164861699 and 255761164861708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255761164861777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101971631 + ... + 104449680.

It is an arithmetic number, because the mean of its divisors is an integer number (13677992186400).

Almost surely, 2^{255761164861775} is an apocalyptic number.

255761164861775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255761164861775 is a deficient number, since it is larger than the sum of its proper divisors (72510647611825).

255761164861775 is a wasteful number, since it uses less digits than its factorization.

255761164861775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206423059 (or 206423054 counting only the distinct ones).

The product of its digits is 592704000, while the sum is 71.

The spelling of 255761164861775 in words is "two hundred fifty-five trillion, seven hundred sixty-one billion, one hundred sixty-four million, eight hundred sixty-one thousand, seven hundred seventy-five".