22566652117 has 4 divisors (see below), whose sum is σ = 22992438060. Its totient is φ = 22140866176.

The previous prime is 22566652081. The next prime is 22566652123. The reversal of 22566652117 is 71125666522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71125666522 = 2 ⋅35562833261.

It can be written as a sum of positive squares in 2 ways, for example, as 16706596516 + 5860055601 = 129254^2 + 76551^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22566652117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22566652417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212892892 + ... + 212892997.

It is an arithmetic number, because the mean of its divisors is an integer number (5748109515).

Almost surely, 2^22566652117 is an apocalyptic number.

It is an amenable number.

22566652117 is a deficient number, since it is larger than the sum of its proper divisors (425785943).

22566652117 is an equidigital number, since it uses as much as digits as its factorization.

22566652117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425785942.

The product of its digits is 302400, while the sum is 43.

The spelling of 22566652117 in words is "twenty-two billion, five hundred sixty-six million, six hundred fifty-two thousand, one hundred seventeen".