866802166064300 has 36 divisors (see below), whose sum is σ = 1882666014017376. Its totient is φ = 346406522894400.

The previous prime is 866802166064293. The next prime is 866802166064321. The reversal of 866802166064300 is 3460661208668.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3929183291 + ... + 3929403890.

Almost surely, 2^{866802166064300} is an apocalyptic number.

It is an amenable number.

866802166064300 is an abundant number, since it is smaller than the sum of its proper divisors (1015863847953076).

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

866802166064300 is a wasteful number, since it uses less digits than its factorization.

866802166064300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858588298 (or 7858588291 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 866802166064300 in words is "eight hundred sixty-six trillion, eight hundred two billion, one hundred sixty-six million, sixty-four thousand, three hundred".