8220225143856 has 160 divisors (see below), whose sum is σ = 24478084730880. Its totient is φ = 2350899590400.

The previous prime is 8220225143803. The next prime is 8220225143863. The reversal of 8220225143856 is 6583415220228.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1080621 + ... + 4196211.

It is an arithmetic number, because the mean of its divisors is an integer number (152988029568).

Almost surely, 2^{8220225143856} 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 8220225143856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12239042365440).

8220225143856 is an abundant number, since it is smaller than the sum of its proper divisors (16257859587024).

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

8220225143856 is a wasteful number, since it uses less digits than its factorization.

8220225143856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115895 (or 3115889 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 8220225143856 in words is "eight trillion, two hundred twenty billion, two hundred twenty-five million, one hundred forty-three thousand, eight hundred fifty-six".