166040132 has 6 divisors (see below), whose sum is σ = 290570238. Its totient is φ = 83020064.

The previous prime is 166040131. The next prime is 166040141. The reversal of 166040132 is 231040661.

It is a happy number.

166040132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 117375556 + 48664576 = 10834^2 + 6976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166040098 and 166040107.

It is not an unprimeable number, because it can be changed into a prime (166040131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20755013 + ... + 20755020.

It is an arithmetic number, because the mean of its divisors is an integer number (48428373).

Almost surely, 2^166040132 is an apocalyptic number.

It is an amenable number.

166040132 is a deficient number, since it is larger than the sum of its proper divisors (124530106).

166040132 is a wasteful number, since it uses less digits than its factorization.

166040132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41510037 (or 41510035 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 166040132 is about 12885.6560562511. The cubic root of 166040132 is about 549.6307516056.

Adding to 166040132 its reverse (231040661), we get a palindrome (397080793).

The spelling of 166040132 in words is "one hundred sixty-six million, forty thousand, one hundred thirty-two".