2016223656 has 32 divisors (see below), whose sum is σ = 5069705760. Its totient is φ = 668188352.

The previous prime is 2016223639. The next prime is 2016223669. The reversal of 2016223656 is 6563226102.

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 7 ways as a sum of consecutive naturals, for example, 238650 + ... + 246953.

It is an arithmetic number, because the mean of its divisors is an integer number (158428305).

Almost surely, 2^2016223656 is an apocalyptic number.

It is an amenable number.

2016223656 is an abundant number, since it is smaller than the sum of its proper divisors (3053482104).

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

2016223656 is a wasteful number, since it uses less digits than its factorization.

2016223656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485785 (or 485781 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 2016223656 is about 44902.3791797272. The cubic root of 2016223656 is about 1263.3186337999.

Adding to 2016223656 its reverse (6563226102), we get a palindrome (8579449758).

The spelling of 2016223656 in words is "two billion, sixteen million, two hundred twenty-three thousand, six hundred fifty-six".