866465564668 has 96 divisors (see below), whose sum is σ = 1756520640000. Its totient is φ = 369851431680.

The previous prime is 866465564663. The next prime is 866465564707.

866465564668 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 866465564597 and 866465564606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866465564663) 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, 62648778 + ... + 62662606.

It is an arithmetic number, because the mean of its divisors is an integer number (18297090000).

Almost surely, 2^866465564668 is an apocalyptic number.

It is an amenable number.

866465564668 is an abundant number, since it is smaller than the sum of its proper divisors (890055075332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866465564668 is a wasteful number, since it uses less digits than its factorization.

866465564668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14515 (or 14513 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 70.

The spelling of 866465564668 in words is "eight hundred sixty-six billion, four hundred sixty-five million, five hundred sixty-four thousand, six hundred sixty-eight".