68255123181 has 32 divisors (see below), whose sum is σ = 104693821440. Its totient is φ = 38745895104.

The previous prime is 68255123147. The next prime is 68255123201. The reversal of 68255123181 is 18132155286.

It is not a de Polignac number, because 68255123181 - 2⁶ = 68255123117 is a prime.

It is a super-2 number, since 2×68255123181² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68255123381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12364540 + ... + 12370058.

It is an arithmetic number, because the mean of its divisors is an integer number (3271681920).

Almost surely, 2^68255123181 is an apocalyptic number.

It is an amenable number.

68255123181 is a deficient number, since it is larger than the sum of its proper divisors (36438698259).

68255123181 is a wasteful number, since it uses less digits than its factorization.

68255123181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305.

The product of its digits is 115200, while the sum is 42.

The spelling of 68255123181 in words is "sixty-eight billion, two hundred fifty-five million, one hundred twenty-three thousand, one hundred eighty-one".