166383816 has 16 divisors (see below), whose sum is σ = 415959600. Its totient is φ = 55461264.

The previous prime is 166383797. The next prime is 166383821. The reversal of 166383816 is 618383661.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3466306 + ... + 3466353.

It is an arithmetic number, because the mean of its divisors is an integer number (25997475).

Almost surely, 2^166383816 is an apocalyptic number.

It is an amenable number.

166383816 is an abundant number, since it is smaller than the sum of its proper divisors (249575784).

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

166383816 is a wasteful number, since it uses less digits than its factorization.

166383816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932668 (or 6932664 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 166383816 is about 12898.9850763539. The cubic root of 166383816 is about 550.0097144290.

The spelling of 166383816 in words is "one hundred sixty-six million, three hundred eighty-three thousand, eight hundred sixteen".