2216492865 has 48 divisors (see below), whose sum is σ = 4015484928. Its totient is φ = 1128893568.

The previous prime is 2216492851. The next prime is 2216492879. The reversal of 2216492865 is 5682946122.

It is an interprime number because it is at equal distance from previous prime (2216492851) and next prime (2216492879).

It is not a de Polignac number, because 2216492865 - 2⁷ = 2216492737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2216492865.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 823552 + ... + 826238.

It is an arithmetic number, because the mean of its divisors is an integer number (83655936).

Almost surely, 2^2216492865 is an apocalyptic number.

It is an amenable number.

2216492865 is a deficient number, since it is larger than the sum of its proper divisors (1798992063).

2216492865 is a wasteful number, since it uses less digits than its factorization.

2216492865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518 (or 3515 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2216492865 is about 47079.6438495450. The cubic root of 2216492865 is about 1303.8334314399.

The spelling of 2216492865 in words is "two billion, two hundred sixteen million, four hundred ninety-two thousand, eight hundred sixty-five".