866132653405877 has 8 divisors (see below), whose sum is σ = 1017554445959520. Its totient is φ = 726824604256560.

The previous prime is 866132653405871. The next prime is 866132653405909. The reversal of 866132653405877 is 778504356231668.

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

It is a cyclic number.

It is not a de Polignac number, because 866132653405877 - 2³⁰ = 866131579664053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 866132653405877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866132653405871) 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, 3028435850927 + ... + 3028435851212.

It is an arithmetic number, because the mean of its divisors is an integer number (127194305744940).

Almost surely, 2^{866132653405877} is an apocalyptic number.

It is an amenable number.

866132653405877 is a deficient number, since it is larger than the sum of its proper divisors (151421792553643).

866132653405877 is a wasteful number, since it uses less digits than its factorization.

866132653405877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056871702163.

The product of its (nonzero) digits is 1219276800, while the sum is 71.

The spelling of 866132653405877 in words is "eight hundred sixty-six trillion, one hundred thirty-two billion, six hundred fifty-three million, four hundred five thousand, eight hundred seventy-seven".