2216787668 has 12 divisors (see below), whose sum is σ = 3879708672. Its totient is φ = 1108299480.

The previous prime is 2216787659. The next prime is 2216787689. The reversal of 2216787668 is 8667876122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75821 + ... + 100907.

It is an arithmetic number, because the mean of its divisors is an integer number (323309056).

Almost surely, 2^2216787668 is an apocalyptic number.

It is an amenable number.

2216787668 is a deficient number, since it is larger than the sum of its proper divisors (1662921004).

2216787668 is a wasteful number, since it uses less digits than its factorization.

2216787668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47182 (or 47180 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 2216787668 is about 47082.7746421130. The cubic root of 2216787668 is about 1303.8912340122.

The spelling of 2216787668 in words is "two billion, two hundred sixteen million, seven hundred eighty-seven thousand, six hundred sixty-eight".