866130111871584 has 96 divisors (see below), whose sum is σ = 2599270257024000. Its totient is φ = 247381944210432.

The previous prime is 866130111871543. The next prime is 866130111871681. The reversal of 866130111871584 is 485178111031668.

It is a happy number.

866130111871584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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, 216248584 + ... + 220217415.

It is an arithmetic number, because the mean of its divisors is an integer number (27075731844000).

Almost surely, 2^{866130111871584} is an apocalyptic number.

866130111871584 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

866130111871584 is an abundant number, since it is smaller than the sum of its proper divisors (1733140145152416).

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

866130111871584 is a wasteful number, since it uses less digits than its factorization.

866130111871584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436468972 (or 436468964 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 60.

The spelling of 866130111871584 in words is "eight hundred sixty-six trillion, one hundred thirty billion, one hundred eleven million, eight hundred seventy-one thousand, five hundred eighty-four".