866788807207148 has 96 divisors (see below), whose sum is σ = 1768828569446400. Its totient is φ = 364000450185216.

The previous prime is 866788807207121. The next prime is 866788807207241. The reversal of 866788807207148 is 841702708887668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804105140 + ... + 805182372.

It is an arithmetic number, because the mean of its divisors is an integer number (18425297598400).

Almost surely, 2^{866788807207148} is an apocalyptic number.

It is an amenable number.

866788807207148 is an abundant number, since it is smaller than the sum of its proper divisors (902039762239252).

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

866788807207148 is a wasteful number, since it uses less digits than its factorization.

866788807207148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080079 (or 1080077 counting only the distinct ones).

The product of its (nonzero) digits is 3236954112, while the sum is 80.

The spelling of 866788807207148 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, eight hundred seven million, two hundred seven thousand, one hundred forty-eight".