2216709806 has 8 divisors (see below), whose sum is σ = 3338862384. Its totient is φ = 1103755680.

The previous prime is 2216709787. The next prime is 2216709823. The reversal of 2216709806 is 6089076122.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2299010 + ... + 2299973.

It is an arithmetic number, because the mean of its divisors is an integer number (417357798).

Almost surely, 2^2216709806 is an apocalyptic number.

2216709806 is a deficient number, since it is larger than the sum of its proper divisors (1122152578).

2216709806 is a wasteful number, since it uses less digits than its factorization.

2216709806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599226.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2216709806 is about 47081.9477719433. The cubic root of 2216709806 is about 1303.8759679631.

The spelling of 2216709806 in words is "two billion, two hundred sixteen million, seven hundred nine thousand, eight hundred six".