22666005 has 24 divisors (see below), whose sum is σ = 39656760. Its totient is φ = 11975040.

The previous prime is 22666003. The next prime is 22666019. The reversal of 22666005 is 50066622.

It can be written as a sum of positive squares in 4 ways, for example, as 2792241 + 19873764 = 1671^2 + 4458^2 .

It is not a de Polignac number, because 22666005 - 2¹ = 22666003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22666005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22666003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2595 + ... + 7215.

It is an arithmetic number, because the mean of its divisors is an integer number (1652365).

Almost surely, 2^22666005 is an apocalyptic number.

It is an amenable number.

22666005 is a deficient number, since it is larger than the sum of its proper divisors (16990755).

22666005 is a wasteful number, since it uses less digits than its factorization.

22666005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 22666005 is about 4760.8827962889. The cubic root of 22666005 is about 283.0034045048.

The spelling of 22666005 in words is "twenty-two million, six hundred sixty-six thousand, five".