22205665545 has 32 divisors (see below), whose sum is σ = 42004811520. Its totient is φ = 9801120000.

The previous prime is 22205665501. The next prime is 22205665549. The reversal of 22205665545 is 54556650222.

It is not a de Polignac number, because 22205665545 - 2¹⁰ = 22205664521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22205665497 and 22205665506.

It is not an unprimeable number, because it can be changed into a prime (22205665549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3643206 + ... + 3649295.

It is an arithmetic number, because the mean of its divisors is an integer number (1312650360).

Almost surely, 2^22205665545 is an apocalyptic number.

It is an amenable number.

22205665545 is a deficient number, since it is larger than the sum of its proper divisors (19799145975).

22205665545 is a wasteful number, since it uses less digits than its factorization.

22205665545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292545.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 22205665545 in words is "twenty-two billion, two hundred five million, six hundred sixty-five thousand, five hundred forty-five".