166344444 has 36 divisors (see below), whose sum is σ = 480551344. Its totient is φ = 47526912.

The previous prime is 166344433. The next prime is 166344457. The reversal of 166344444 is 444443661.

166344444 is a `hidden beast` number, since 16 + 634 + 4 + 4 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

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

It is a junction number, because it is equal to n+sod(n) for n = 166344399 and 166344408.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 329797 + ... + 330300.

Almost surely, 2^166344444 is an apocalyptic number.

166344444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166344444 is an abundant number, since it is smaller than the sum of its proper divisors (314206900).

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

166344444 is a wasteful number, since it uses less digits than its factorization.

166344444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660114 (or 660109 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 166344444 is about 12897.4588194729. The cubic root of 166344444 is about 549.9663274151.

The spelling of 166344444 in words is "one hundred sixty-six million, three hundred forty-four thousand, four hundred forty-four".