866130621831167 has 32 divisors (see below), whose sum is σ = 1085014152668160. Its totient is φ = 671685796903680.

The previous prime is 866130621831151. The next prime is 866130621831169. The reversal of 866130621831167 is 761138126031668.

It is a cyclic number.

It is not a de Polignac number, because 866130621831167 - 2⁴ = 866130621831151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866130621831169) 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, 5413067 + ... + 41970972.

It is an arithmetic number, because the mean of its divisors is an integer number (33906692270880).

Almost surely, 2^{866130621831167} is an apocalyptic number.

866130621831167 is a deficient number, since it is larger than the sum of its proper divisors (218883530836993).

866130621831167 is a wasteful number, since it uses less digits than its factorization.

866130621831167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47385191.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 866130621831167 in words is "eight hundred sixty-six trillion, one hundred thirty billion, six hundred twenty-one million, eight hundred thirty-one thousand, one hundred sixty-seven".