2216227664 has 30 divisors (see below), whose sum is σ = 4994994474. Its totient is φ = 949811520.

The previous prime is 2216227649. The next prime is 2216227669. The reversal of 2216227664 is 4667226122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1847280400 + 368947264 = 42980^2 + 19208^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216227669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1412627 + ... + 1414194.

Almost surely, 2^2216227664 is an apocalyptic number.

It is an amenable number.

2216227664 is an abundant number, since it is smaller than the sum of its proper divisors (2778766810).

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

2216227664 is a wasteful number, since it uses less digits than its factorization.

2216227664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826843 (or 2826830 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 2216227664 is about 47076.8272507823. The cubic root of 2216227664 is about 1303.7814286074.

The spelling of 2216227664 in words is "two billion, two hundred sixteen million, two hundred twenty-seven thousand, six hundred sixty-four".