866163623464063 has 8 divisors (see below), whose sum is σ = 917125904417040. Its totient is φ = 815202618019200.

The previous prime is 866163623464049. The next prime is 866163623464103. The reversal of 866163623464063 is 360464326361668.

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

It is a de Polignac number, because none of the positive numbers 2^k-866163623464063 is a prime.

It is a super-2 number, since 2×866163623464063² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866163623463986 and 866163623464004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866163603464063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317478753 + ... + 320195386.

It is an arithmetic number, because the mean of its divisors is an integer number (114640738052130).

Almost surely, 2^{866163623464063} is an apocalyptic number.

866163623464063 is a deficient number, since it is larger than the sum of its proper divisors (50962280952977).

866163623464063 is a wasteful number, since it uses less digits than its factorization.

866163623464063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637754057.

The product of its (nonzero) digits is 322486272, while the sum is 64.

The spelling of 866163623464063 in words is "eight hundred sixty-six trillion, one hundred sixty-three billion, six hundred twenty-three million, four hundred sixty-four thousand, sixty-three".