885816218720 has 96 divisors (see below), whose sum is σ = 2185339419648. Its totient is φ = 338671134208.

The previous prime is 885816218719. The next prime is 885816218747. The reversal of 885816218720 is 27812618588.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4942517 + ... + 5118603.

It is an arithmetic number, because the mean of its divisors is an integer number (22763952288).

Almost surely, 2^885816218720 is an apocalyptic number.

885816218720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 885816218720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092669709824).

885816218720 is an abundant number, since it is smaller than the sum of its proper divisors (1299523200928).

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

885816218720 is a wasteful number, since it uses less digits than its factorization.

885816218720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177492 (or 177484 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 56.

The spelling of 885816218720 in words is "eight hundred eighty-five billion, eight hundred sixteen million, two hundred eighteen thousand, seven hundred twenty".