166156122 has 32 divisors (see below), whose sum is σ = 372325824. Its totient is φ = 48988800.

The previous prime is 166156097. The next prime is 166156141. The reversal of 166156122 is 221651661.

It is a self number, because there is not a number n which added to its sum of digits gives 166156122.

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, 31579 + ... + 36462.

It is an arithmetic number, because the mean of its divisors is an integer number (11635182).

Almost surely, 2^166156122 is an apocalyptic number.

166156122 is an abundant number, since it is smaller than the sum of its proper divisors (206169702).

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

166156122 is a wasteful number, since it uses less digits than its factorization.

166156122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68094.

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

The square root of 166156122 is about 12890.1560114686. The cubic root of 166156122 is about 549.7587062773.

The spelling of 166156122 in words is "one hundred sixty-six million, one hundred fifty-six thousand, one hundred twenty-two".