2216455859520 has 896 divisors, whose sum is σ = 9055281254400. Its totient is φ = 499903488000.

The previous prime is 2216455859509. The next prime is 2216455859549. The reversal of 2216455859520 is 259585546122.

It is a happy number.

2216455859520 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 4 + 5 + 585 + 9 + 52 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2999263311 + ... + 2999264049.

Almost surely, 2^{2216455859520} is an apocalyptic number.

2216455859520 is a gapful number since it is divisible by the number (20) 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 2216455859520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4527640627200).

2216455859520 is an abundant number, since it is smaller than the sum of its proper divisors (6838825394880).

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

2216455859520 is a wasteful number, since it uses less digits than its factorization.

2216455859520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 54.

The spelling of 2216455859520 in words is "two trillion, two hundred sixteen billion, four hundred fifty-five million, eight hundred fifty-nine thousand, five hundred twenty".