166267984 has 20 divisors (see below), whose sum is σ = 322478740. Its totient is φ = 83047680.

The previous prime is 166267979. The next prime is 166268009. The reversal of 166267984 is 489762661.

It can be written as a sum of positive squares in 2 ways, for example, as 32171584 + 134096400 = 5672^2 + 11580^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12244 + ... + 21964.

It is an arithmetic number, because the mean of its divisors is an integer number (16123937).

Almost surely, 2^166267984 is an apocalyptic number.

It is an amenable number.

166267984 is a deficient number, since it is larger than the sum of its proper divisors (156210756).

166267984 is a wasteful number, since it uses less digits than its factorization.

166267984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798 (or 10792 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 166267984 is about 12894.4943289762. The cubic root of 166267984 is about 549.8820507403.

The spelling of 166267984 in words is "one hundred sixty-six million, two hundred sixty-seven thousand, nine hundred eighty-four".