166485465 has 48 divisors (see below), whose sum is σ = 298666368. Its totient is φ = 85736448.

The previous prime is 166485439. The next prime is 166485481. The reversal of 166485465 is 564584661.

166485465 is a `hidden beast` number, since 1 + 66 + 48 + 546 + 5 = 666.

It is not a de Polignac number, because 166485465 - 2⁷ = 166485337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 166485465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187252 + ... + 188138.

It is an arithmetic number, because the mean of its divisors is an integer number (6222216).

Almost surely, 2^166485465 is an apocalyptic number.

166485465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166485465 is a deficient number, since it is larger than the sum of its proper divisors (132180903).

166485465 is a wasteful number, since it uses less digits than its factorization.

166485465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1035 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 166485465 is about 12902.9246684618. The cubic root of 166485465 is about 550.1216975881.

The spelling of 166485465 in words is "one hundred sixty-six million, four hundred eighty-five thousand, four hundred sixty-five".