22162066665 has 16 divisors (see below), whose sum is σ = 35857728000. Its totient is φ = 11686961792.

The previous prime is 22162066649. The next prime is 22162066669. The reversal of 22162066665 is 56666026122.

It is a cyclic number.

It is not a de Polignac number, because 22162066665 - 2⁴ = 22162066649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22162066669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8299065 + ... + 8301734.

It is an arithmetic number, because the mean of its divisors is an integer number (2241108000).

Almost surely, 2^22162066665 is an apocalyptic number.

It is an amenable number.

22162066665 is a deficient number, since it is larger than the sum of its proper divisors (13695661335).

22162066665 is a wasteful number, since it uses less digits than its factorization.

22162066665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16600896.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 22162066665 in words is "twenty-two billion, one hundred sixty-two million, sixty-six thousand, six hundred sixty-five".