166875479 has 4 divisors (see below), whose sum is σ = 166918200. Its totient is φ = 166832760.

The previous prime is 166875473. The next prime is 166875487. The reversal of 166875479 is 974578661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166875479 - 2⁸ = 166875223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166875479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166875473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14837 + ... + 23534.

It is an arithmetic number, because the mean of its divisors is an integer number (41729550).

Almost surely, 2^166875479 is an apocalyptic number.

166875479 is a deficient number, since it is larger than the sum of its proper divisors (42721).

166875479 is an equidigital number, since it uses as much as digits as its factorization.

166875479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42720.

The product of its digits is 2540160, while the sum is 53.

The square root of 166875479 is about 12918.0292227569. The cubic root of 166875479 is about 550.5509399452.

The spelling of 166875479 in words is "one hundred sixty-six million, eight hundred seventy-five thousand, four hundred seventy-nine".