166512122 has 16 divisors (see below), whose sum is σ = 286177920. Its totient is φ = 71180208.

The previous prime is 166512107. The next prime is 166512133. The reversal of 166512122 is 221215661.

It is a junction number, because it is equal to n+sod(n) for n = 166512091 and 166512100.

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 7 ways as a sum of consecutive naturals, for example, 9422 + ... + 20537.

It is an arithmetic number, because the mean of its divisors is an integer number (17886120).

Almost surely, 2^166512122 is an apocalyptic number.

166512122 is a deficient number, since it is larger than the sum of its proper divisors (119665798).

166512122 is a wasteful number, since it uses less digits than its factorization.

166512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30365.

The product of its digits is 1440, while the sum is 26.

The square root of 166512122 is about 12903.9576099738. The cubic root of 166512122 is about 550.1510571311.

Adding to 166512122 its reverse (221215661), we get a palindrome (387727783).

The spelling of 166512122 in words is "one hundred sixty-six million, five hundred twelve thousand, one hundred twenty-two".