22256651216 has 20 divisors (see below), whose sum is σ = 43185978852. Its totient is φ = 11111882496.

The previous prime is 22256651189. The next prime is 22256651239. The reversal of 22256651216 is 61215665222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13548028816 + 8708622400 = 116396^2 + 93320^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22256651216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016525 + ... + 1038188.

Almost surely, 2^22256651216 is an apocalyptic number.

It is an amenable number.

22256651216 is a deficient number, since it is larger than the sum of its proper divisors (20929327636).

22256651216 is a wasteful number, since it uses less digits than its factorization.

22256651216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055398 (or 2055392 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The spelling of 22256651216 in words is "twenty-two billion, two hundred fifty-six million, six hundred fifty-one thousand, two hundred sixteen".