2220216662556 has 36 divisors (see below), whose sum is σ = 5749097621904. Its totient is φ = 722021678400.

The previous prime is 2220216662527. The next prime is 2220216662557. The reversal of 2220216662556 is 6552666120222.

2220216662556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220216662557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752104440 + ... + 752107391.

It is an arithmetic number, because the mean of its divisors is an integer number (159697156164).

Almost surely, 2^{2220216662556} is an apocalyptic number.

It is an amenable number.

2220216662556 is an abundant number, since it is smaller than the sum of its proper divisors (3528880959348).

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

2220216662556 is a wasteful number, since it uses less digits than its factorization.

2220216662556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504211882 (or 1504211877 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 2220216662556 in words is "two trillion, two hundred twenty billion, two hundred sixteen million, six hundred sixty-two thousand, five hundred fifty-six".