22246145856 has 140 divisors (see below), whose sum is σ = 71939688480. Its totient is φ = 6741239040.

The previous prime is 22246145827. The next prime is 22246145869. The reversal of 22246145856 is 65854164222.

22246145856 is a `hidden beast` number, since 2 + 2 + 2 + 4 + 61 + 4 + 585 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 138036 + ... + 252083.

Almost surely, 2^22246145856 is an apocalyptic number.

It is an amenable number.

22246145856 is an abundant number, since it is smaller than the sum of its proper divisors (49693542624).

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

22246145856 is a wasteful number, since it uses less digits than its factorization.

22246145856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390154 (or 390135 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 22246145856 in words is "twenty-two billion, two hundred forty-six million, one hundred forty-five thousand, eight hundred fifty-six".