2216666673 has 24 divisors (see below), whose sum is σ = 3629633280. Its totient is φ = 1292306400.

The previous prime is 2216666623. The next prime is 2216666693. The reversal of 2216666673 is 3766666122.

It is not a de Polignac number, because 2216666673 - 2¹⁶ = 2216601137 is a prime.

It is a super-2 number, since 2×2216666673² = 9827222278377777858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2216666603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496353 + ... + 500798.

It is an arithmetic number, because the mean of its divisors is an integer number (151234720).

Almost surely, 2^2216666673 is an apocalyptic number.

It is an amenable number.

2216666673 is a deficient number, since it is larger than the sum of its proper divisors (1412966607).

2216666673 is a wasteful number, since it uses less digits than its factorization.

2216666673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997189 (or 997186 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 2216666673 is about 47081.4897066777. The cubic root of 2216666673 is about 1303.8675109176.

The spelling of 2216666673 in words is "two billion, two hundred sixteen million, six hundred sixty-six thousand, six hundred seventy-three".