2216643341040 has 80 divisors (see below), whose sum is σ = 7635104848800. Its totient is φ = 591104890368.

The previous prime is 2216643341023. The next prime is 2216643341083. The reversal of 2216643341040 is 401433466122.

2216643341040 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 643 + 3 + 4 + 1 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2216643340986 and 2216643341004.

It is a congruent 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, 513109725 + ... + 513114044.

It is an arithmetic number, because the mean of its divisors is an integer number (95438810610).

Almost surely, 2^{2216643341040} is an apocalyptic number.

2216643341040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216643341040 is an abundant number, since it is smaller than the sum of its proper divisors (5418461507760).

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

2216643341040 is a wasteful number, since it uses less digits than its factorization.

2216643341040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026223791 (or 1026223779 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 2216643341040 in words is "two trillion, two hundred sixteen billion, six hundred forty-three million, three hundred forty-one thousand, forty".