166532150018 has 32 divisors (see below), whose sum is σ = 273078292032. Its totient is φ = 75705220800.

The previous prime is 166532149963. The next prime is 166532150023. The reversal of 166532150018 is 810051235661.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 597728 + ... + 830868.

It is an arithmetic number, because the mean of its divisors is an integer number (8533696626).

Almost surely, 2^166532150018 is an apocalyptic number.

166532150018 is a deficient number, since it is larger than the sum of its proper divisors (106546142014).

166532150018 is a wasteful number, since it uses less digits than its factorization.

166532150018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233570.

The product of its (nonzero) digits is 43200, while the sum is 38.

Adding to 166532150018 its reverse (810051235661), we get a palindrome (976583385679).

The spelling of 166532150018 in words is "one hundred sixty-six billion, five hundred thirty-two million, one hundred fifty thousand, eighteen".