2216565464 has 16 divisors (see below), whose sum is σ = 4206134520. Its totient is φ = 1094929600.

The previous prime is 2216565427. The next prime is 2216565469. The reversal of 2216565464 is 4645656122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216565469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668437 + ... + 1669764.

Almost surely, 2^2216565464 is an apocalyptic number.

It is an amenable number.

2216565464 is a deficient number, since it is larger than the sum of its proper divisors (1989569056).

2216565464 is a wasteful number, since it uses less digits than its factorization.

2216565464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338290 (or 3338286 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 2216565464 is about 47080.4148664814. The cubic root of 2216565464 is about 1303.8476665364.

The spelling of 2216565464 in words is "two billion, two hundred sixteen million, five hundred sixty-five thousand, four hundred sixty-four".