866788526230161 has 32 divisors (see below), whose sum is σ = 1182892455275520. Its totient is φ = 564278579008704.

The previous prime is 866788526230157. The next prime is 866788526230181. The reversal of 866788526230161 is 161032625887668.

It is not a de Polignac number, because 866788526230161 - 2² = 866788526230157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (866788526230111) 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, 12010834900 + ... + 12010907066.

It is an arithmetic number, because the mean of its divisors is an integer number (36965389227360).

Almost surely, 2^{866788526230161} is an apocalyptic number.

It is an amenable number.

866788526230161 is a deficient number, since it is larger than the sum of its proper divisors (316103929045359).

866788526230161 is a wasteful number, since it uses less digits than its factorization.

866788526230161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94325.

The product of its (nonzero) digits is 278691840, while the sum is 69.

The spelling of 866788526230161 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, two hundred thirty thousand, one hundred sixty-one".