8565420336860 has 48 divisors (see below), whose sum is σ = 18258226129920. Its totient is φ = 3374592217920.

The previous prime is 8565420336859. The next prime is 8565420336911. The reversal of 8565420336860 is 686330245658.

It is a junction number, because it is equal to n+sod(n) for n = 8565420336796 and 8565420336805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9985145 + ... + 10808975.

It is an arithmetic number, because the mean of its divisors is an integer number (380379711040).

Almost surely, 2^{8565420336860} is an apocalyptic number.

It is an amenable number.

8565420336860 is an abundant number, since it is smaller than the sum of its proper divisors (9692805793060).

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

8565420336860 is a wasteful number, since it uses less digits than its factorization.

8565420336860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831666 (or 831664 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 56.

The spelling of 8565420336860 in words is "eight trillion, five hundred sixty-five billion, four hundred twenty million, three hundred thirty-six thousand, eight hundred sixty".