866882604355811 has 4 divisors (see below), whose sum is σ = 866882995098432. Its totient is φ = 866882213613192.

The previous prime is 866882604355721. The next prime is 866882604355813. The reversal of 866882604355811 is 118553406288668.

866882604355811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866882604355811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866882604355813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192024371 + ... + 196486956.

It is an arithmetic number, because the mean of its divisors is an integer number (216720748774608).

Almost surely, 2^{866882604355811} is an apocalyptic number.

866882604355811 is a deficient number, since it is larger than the sum of its proper divisors (390742621).

866882604355811 is a wasteful number, since it uses less digits than its factorization.

866882604355811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390742620.

The product of its (nonzero) digits is 530841600, while the sum is 71.

The spelling of 866882604355811 in words is "eight hundred sixty-six trillion, eight hundred eighty-two billion, six hundred four million, three hundred fifty-five thousand, eight hundred eleven".