220471647888 has 80 divisors (see below), whose sum is σ = 603840726720. Its totient is φ = 69077434368.

The previous prime is 220471647859. The next prime is 220471647923. The reversal of 220471647888 is 888746174022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451831 + ... + 803177.

It is an arithmetic number, because the mean of its divisors is an integer number (7548009084).

Almost surely, 2^220471647888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220471647888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301920363360).

220471647888 is an abundant number, since it is smaller than the sum of its proper divisors (383369078832).

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

220471647888 is a wasteful number, since it uses less digits than its factorization.

220471647888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352144 (or 352138 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 57.

The spelling of 220471647888 in words is "two hundred twenty billion, four hundred seventy-one million, six hundred forty-seven thousand, eight hundred eighty-eight".