22660069 has 4 divisors (see below), whose sum is σ = 22812300. Its totient is φ = 22507840.

The previous prime is 22660067. The next prime is 22660087. The reversal of 22660069 is 96006622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96006622 = 2 ⋅48003311.

It can be written as a sum of positive squares in 2 ways, for example, as 4255969 + 18404100 = 2063^2 + 4290^2 .

It is a cyclic number.

It is not a de Polignac number, because 22660069 - 2¹ = 22660067 is a prime.

It is a super-2 number, since 2×22660069² = 1026957454169522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22660069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22660061) 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, 75892 + ... + 76189.

It is an arithmetic number, because the mean of its divisors is an integer number (5703075).

Almost surely, 2^22660069 is an apocalyptic number.

It is an amenable number.

22660069 is a deficient number, since it is larger than the sum of its proper divisors (152231).

22660069 is a wasteful number, since it uses less digits than its factorization.

22660069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152230.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 22660069 is about 4760.2593416746. The cubic root of 22660069 is about 282.9786970942.

The spelling of 22660069 in words is "twenty-two million, six hundred sixty thousand, sixty-nine".