22553535665 has 8 divisors (see below), whose sum is σ = 27277347840. Its totient is φ = 17900758512.

The previous prime is 22553535623. The next prime is 22553535689. The reversal of 22553535665 is 56653535522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22553535665 - 2¹² = 22553531569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17758055 + ... + 17759324.

It is an arithmetic number, because the mean of its divisors is an integer number (3409668480).

Almost surely, 2^22553535665 is an apocalyptic number.

It is an amenable number.

22553535665 is a deficient number, since it is larger than the sum of its proper divisors (4723812175).

22553535665 is a wasteful number, since it uses less digits than its factorization.

22553535665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35517511.

The product of its digits is 4050000, while the sum is 47.

The spelling of 22553535665 in words is "twenty-two billion, five hundred fifty-three million, five hundred thirty-five thousand, six hundred sixty-five".