2216955559936 has 120 divisors (see below), whose sum is σ = 4778209503144. Its totient is φ = 1022487429120.

The previous prime is 2216955559913. The next prime is 2216955559939. The reversal of 2216955559936 is 6399555596122.

It can be written as a sum of positive squares in 4 ways, for example, as 555537678336 + 1661417881600 = 745344^2 + 1288960^2 .

It is a super-2 number, since 2×2216955559936² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216955559939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407450976 + ... + 407456416.

Almost surely, 2^{2216955559936} is an apocalyptic number.

2216955559936 is a gapful number since it is divisible by the number (26) 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 2216955559936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2389104751572).

2216955559936 is an abundant number, since it is smaller than the sum of its proper divisors (2561253943208).

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

2216955559936 is an equidigital number, since it uses as much as digits as its factorization.

2216955559936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395 (or 7369 counting only the distinct ones).

The product of its digits is 196830000, while the sum is 67.

The spelling of 2216955559936 in words is "two trillion, two hundred sixteen billion, nine hundred fifty-five million, five hundred fifty-nine thousand, nine hundred thirty-six".