18134561066 has 8 divisors (see below), whose sum is σ = 27208968384. Its totient is φ = 9064904940.

The previous prime is 18134561041. The next prime is 18134561069. The reversal of 18134561066 is 66016543181.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18134561069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178240 + ... + 1193531.

It is an arithmetic number, because the mean of its divisors is an integer number (3401121048).

Almost surely, 2^18134561066 is an apocalyptic number.

18134561066 is a deficient number, since it is larger than the sum of its proper divisors (9074407318).

18134561066 is a wasteful number, since it uses less digits than its factorization.

18134561066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375596.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18134561066 in words is "eighteen billion, one hundred thirty-four million, five hundred sixty-one thousand, sixty-six".