22220657643 has 16 divisors (see below), whose sum is σ = 31190074880. Its totient is φ = 14032665504.

The previous prime is 22220657633. The next prime is 22220657651. The reversal of 22220657643 is 34675602222.

It is not a de Polignac number, because 22220657643 - 2⁹ = 22220657131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220657633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 974430 + ... + 996972.

It is an arithmetic number, because the mean of its divisors is an integer number (1949379680).

Almost surely, 2^22220657643 is an apocalyptic number.

22220657643 is a deficient number, since it is larger than the sum of its proper divisors (8969417237).

22220657643 is a wasteful number, since it uses less digits than its factorization.

22220657643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39858.

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 22220657643 in words is "twenty-two billion, two hundred twenty million, six hundred fifty-seven thousand, six hundred forty-three".