166206122 has 8 divisors (see below), whose sum is σ = 249480000. Its totient is φ = 83046124.

The previous prime is 166206121. The next prime is 166206133. The reversal of 166206122 is 221602661.

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 = 166206091 and 166206100.

It is not an unprimeable number, because it can be changed into a prime (166206121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24722 + ... + 30717.

It is an arithmetic number, because the mean of its divisors is an integer number (31185000).

Almost surely, 2^166206122 is an apocalyptic number.

166206122 is a deficient number, since it is larger than the sum of its proper divisors (83273878).

166206122 is a wasteful number, since it uses less digits than its factorization.

166206122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56940.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 166206122 is about 12892.0953300850. The cubic root of 166206122 is about 549.8138455407.

Adding to 166206122 its reverse (221602661), we get a palindrome (387808783).

The spelling of 166206122 in words is "one hundred sixty-six million, two hundred six thousand, one hundred twenty-two".