166771122 has 64 divisors (see below), whose sum is σ = 406923264. Its totient is φ = 44478720.

The previous prime is 166771097. The next prime is 166771217. The reversal of 166771122 is 221177661.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92643 + ... + 94425.

It is an arithmetic number, because the mean of its divisors is an integer number (6358176).

Almost surely, 2^166771122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166771122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203461632).

166771122 is an abundant number, since it is smaller than the sum of its proper divisors (240152142).

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

166771122 is a wasteful number, since it uses less digits than its factorization.

166771122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943.

The product of its digits is 7056, while the sum is 33.

The square root of 166771122 is about 12913.9893913539. The cubic root of 166771122 is about 550.4361521099.

The spelling of 166771122 in words is "one hundred sixty-six million, seven hundred seventy-one thousand, one hundred twenty-two".