2216265644 has 12 divisors (see below), whose sum is σ = 3878917224. Its totient is φ = 1108003584.

The previous prime is 2216265631. The next prime is 2216265661. The reversal of 2216265644 is 4465626122.

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 junction number, because it is equal to n+sod(n) for n = 2216265598 and 2216265607.

It is an unprimeable number.

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, 13487 + ... + 67929.

It is an arithmetic number, because the mean of its divisors is an integer number (323243102).

Almost surely, 2^2216265644 is an apocalyptic number.

It is an amenable number.

2216265644 is a deficient number, since it is larger than the sum of its proper divisors (1662651580).

2216265644 is a wasteful number, since it uses less digits than its factorization.

2216265644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64624 (or 64622 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 2216265644 is about 47077.2306322281. The cubic root of 2216265644 is about 1303.7888762983.

The spelling of 2216265644 in words is "two billion, two hundred sixteen million, two hundred sixty-five thousand, six hundred forty-four".