166659485 has 8 divisors (see below), whose sum is σ = 202976736. Its totient is φ = 131337360.

The previous prime is 166659473. The next prime is 166659497. The reversal of 166659485 is 584956661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166659473) and next prime (166659497).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166659485 - 2⁶ = 166659421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248411 + ... + 249080.

It is an arithmetic number, because the mean of its divisors is an integer number (25372092).

Almost surely, 2^166659485 is an apocalyptic number.

It is an amenable number.

166659485 is a deficient number, since it is larger than the sum of its proper divisors (36317251).

166659485 is an equidigital number, since it uses as much as digits as its factorization.

166659485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497563.

The product of its digits is 1555200, while the sum is 50.

The square root of 166659485 is about 12909.6663396077. Note that the first 3 decimals coincide. The cubic root of 166659485 is about 550.3133035886.

The spelling of 166659485 in words is "one hundred sixty-six million, six hundred fifty-nine thousand, four hundred eighty-five".