166115226 has 16 divisors (see below), whose sum is σ = 333684000. Its totient is φ = 55129488.

The previous prime is 166115203. The next prime is 166115273. The reversal of 166115226 is 622511661.

166115226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166115193 and 166115202.

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, 59076 + ... + 61823.

It is an arithmetic number, because the mean of its divisors is an integer number (20855250).

Almost surely, 2^166115226 is an apocalyptic number.

166115226 is an abundant number, since it is smaller than the sum of its proper divisors (167568774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166115226 is a wasteful number, since it uses less digits than its factorization.

166115226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121133.

The product of its digits is 4320, while the sum is 30.

The square root of 166115226 is about 12888.5695870411. The cubic root of 166115226 is about 549.7135985465.

Adding to 166115226 its reverse (622511661), we get a palindrome (788626887).

The spelling of 166115226 in words is "one hundred sixty-six million, one hundred fifteen thousand, two hundred twenty-six".