2216666266604 has 6 divisors (see below), whose sum is σ = 3879165966564. Its totient is φ = 1108333133300.

The previous prime is 2216666266601. The next prime is 2216666266621. The reversal of 2216666266604 is 4066626666122.

It is not an unprimeable number, because it can be changed into a prime (2216666266601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277083283322 + ... + 277083283329.

It is an arithmetic number, because the mean of its divisors is an integer number (646527661094).

Almost surely, 2^{2216666266604} is an apocalyptic number.

It is an amenable number.

2216666266604 is a deficient number, since it is larger than the sum of its proper divisors (1662499699960).

2216666266604 is a wasteful number, since it uses less digits than its factorization.

2216666266604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554166566655 (or 554166566653 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 53.

The spelling of 2216666266604 in words is "two trillion, two hundred sixteen billion, six hundred sixty-six million, two hundred sixty-six thousand, six hundred four".