866704164254 has 8 divisors (see below), whose sum is σ = 1304889170040. Its totient is φ = 431741107576.

The previous prime is 866704164253. The next prime is 866704164281. The reversal of 866704164254 is 452461407668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×866704164254² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 866704164196 and 866704164205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866704164253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805486604 + ... + 805487679.

It is an arithmetic number, because the mean of its divisors is an integer number (163111146255).

Almost surely, 2^866704164254 is an apocalyptic number.

866704164254 is a deficient number, since it is larger than the sum of its proper divisors (438185005786).

866704164254 is a wasteful number, since it uses less digits than its factorization.

866704164254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610974554.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 866704164254 in words is "eight hundred sixty-six billion, seven hundred four million, one hundred sixty-four thousand, two hundred fifty-four".