18347830066 has 32 divisors (see below), whose sum is σ = 29978035200. Its totient is φ = 8396509440.

The previous prime is 18347830031. The next prime is 18347830099. The reversal of 18347830066 is 66003874381.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 18347829998 and 18347830025.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 54630 + ... + 199198.

It is an arithmetic number, because the mean of its divisors is an integer number (936813600).

Almost surely, 2^18347830066 is an apocalyptic number.

18347830066 is a deficient number, since it is larger than the sum of its proper divisors (11630205134).

18347830066 is a wasteful number, since it uses less digits than its factorization.

18347830066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144714.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 18347830066 in words is "eighteen billion, three hundred forty-seven million, eight hundred thirty thousand, sixty-six".