166844412 has 54 divisors (see below), whose sum is σ = 490607208. Its totient is φ = 47669328.

The previous prime is 166844401. The next prime is 166844417. The reversal of 166844412 is 214448661.

It is a happy number.

166844412 is a `hidden beast` number, since 166 + 84 + 4 + 412 = 666.

It is a super-3 number, since 3×166844412³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166844417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45528 + ... + 49055.

Almost surely, 2^166844412 is an apocalyptic number.

166844412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166844412 is an abundant number, since it is smaller than the sum of its proper divisors (323762796).

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

166844412 is a wasteful number, since it uses less digits than its factorization.

166844412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94607 (or 94595 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 166844412 is about 12916.8267000839. The cubic root of 166844412 is about 550.5167726974.

The spelling of 166844412 in words is "one hundred sixty-six million, eight hundred forty-four thousand, four hundred twelve".