866786233203365 has 16 divisors (see below), whose sum is σ = 1095062302801920. Its totient is φ = 656828066543040.

The previous prime is 866786233203347. The next prime is 866786233203481. The reversal of 866786233203365 is 563302332687668.

It is not a de Polignac number, because 866786233203365 - 2¹⁰ = 866786233202341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866786233203295 and 866786233203304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726189221 + ... + 727381850.

It is an arithmetic number, because the mean of its divisors is an integer number (68441393925120).

Almost surely, 2^{866786233203365} is an apocalyptic number.

It is an amenable number.

866786233203365 is a deficient number, since it is larger than the sum of its proper divisors (228276069598555).

866786233203365 is a wasteful number, since it uses less digits than its factorization.

866786233203365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453577372.

The product of its (nonzero) digits is 940584960, while the sum is 68.

The spelling of 866786233203365 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, two hundred thirty-three million, two hundred three thousand, three hundred sixty-five".