2216656506220 has 48 divisors (see below), whose sum is σ = 5013506594880. Its totient is φ = 818383885056.

The previous prime is 2216656506209. The next prime is 2216656506257. The reversal of 2216656506220 is 226056566122.

It is a super-3 number, since 3×2216656506220³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542854 + ... + 3301426.

It is an arithmetic number, because the mean of its divisors is an integer number (104448054060).

Almost surely, 2^{2216656506220} is an apocalyptic number.

2216656506220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2216656506220 is an abundant number, since it is smaller than the sum of its proper divisors (2796850088660).

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

2216656506220 is a wasteful number, since it uses less digits than its factorization.

2216656506220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769834 (or 769832 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 2216656506220 in words is "two trillion, two hundred sixteen billion, six hundred fifty-six million, five hundred six thousand, two hundred twenty".