22511530666 has 16 divisors (see below), whose sum is σ = 33818626440. Its totient is φ = 11238670080.

The previous prime is 22511530661. The next prime is 22511530687. The reversal of 22511530666 is 66603511522.

22511530666 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21976580025 + 534950641 = 148245^2 + 23129^2 .

It is not an unprimeable number, because it can be changed into a prime (22511530661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6910110 + ... + 6913366.

Almost surely, 2^22511530666 is an apocalyptic number.

22511530666 is a deficient number, since it is larger than the sum of its proper divisors (11307095774).

22511530666 is a wasteful number, since it uses less digits than its factorization.

22511530666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 22511530666 in words is "twenty-two billion, five hundred eleven million, five hundred thirty thousand, six hundred sixty-six".