866488850800 has 60 divisors (see below), whose sum is σ = 2204194743936. Its totient is φ = 326207564800.

The previous prime is 866488850771. The next prime is 866488850803. The reversal of 866488850800 is 8058884668.

866488850800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866488850803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63705616 + ... + 63719215.

Almost surely, 2^866488850800 is an apocalyptic number.

866488850800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

866488850800 is an abundant number, since it is smaller than the sum of its proper divisors (1337705893136).

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

866488850800 is a wasteful number, since it uses less digits than its factorization.

866488850800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127424866 (or 127424855 counting only the distinct ones).

The product of its (nonzero) digits is 23592960, while the sum is 61.

The spelling of 866488850800 in words is "eight hundred sixty-six billion, four hundred eighty-eight million, eight hundred fifty thousand, eight hundred".