18552686066 has 8 divisors (see below), whose sum is σ = 27835873884. Its totient is φ = 9274061440.

The previous prime is 18552686011. The next prime is 18552686069. The reversal of 18552686066 is 66068625581.

It can be written as a sum of positive squares in 2 ways, for example, as 17968062025 + 584624041 = 134045^2 + 24179^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18552685999 and 18552686017.

It is not an unprimeable number, because it can be changed into a prime (18552686069) 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, 1130615 + ... + 1146906.

Almost surely, 2^18552686066 is an apocalyptic number.

18552686066 is a deficient number, since it is larger than the sum of its proper divisors (9283187818).

18552686066 is a wasteful number, since it uses less digits than its factorization.

18552686066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281596.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 18552686066 in words is "eighteen billion, five hundred fifty-two million, six hundred eighty-six thousand, sixty-six".