166698485 has 4 divisors (see below), whose sum is σ = 200038188. Its totient is φ = 133358784.

The previous prime is 166698463. The next prime is 166698509. The reversal of 166698485 is 584896661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96373489 + 70324996 = 9817^2 + 8386^2 .

It is a cyclic number.

It is not a de Polignac number, because 166698485 - 2¹² = 166694389 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 3 ways as a sum of consecutive naturals, for example, 16669844 + ... + 16669853.

It is an arithmetic number, because the mean of its divisors is an integer number (50009547).

Almost surely, 2^166698485 is an apocalyptic number.

It is an amenable number.

166698485 is a deficient number, since it is larger than the sum of its proper divisors (33339703).

166698485 is an equidigital number, since it uses as much as digits as its factorization.

166698485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33339702.

The product of its digits is 2488320, while the sum is 53.

The square root of 166698485 is about 12911.1767472992. The cubic root of 166698485 is about 550.3562265280.

The spelling of 166698485 in words is "one hundred sixty-six million, six hundred ninety-eight thousand, four hundred eighty-five".