166010565 has 16 divisors (see below), whose sum is σ = 303562368. Its totient is φ = 75890496.

The previous prime is 166010563. The next prime is 166010617. The reversal of 166010565 is 565010661.

It is not a de Polignac number, because 166010565 - 2¹ = 166010563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166010563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790422 + ... + 790631.

It is an arithmetic number, because the mean of its divisors is an integer number (18972648).

Almost surely, 2^166010565 is an apocalyptic number.

166010565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166010565 is a deficient number, since it is larger than the sum of its proper divisors (137551803).

166010565 is a wasteful number, since it uses less digits than its factorization.

166010565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581068.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 166010565 is about 12884.5087217169. The cubic root of 166010565 is about 549.5981251618.

The spelling of 166010565 in words is "one hundred sixty-six million, ten thousand, five hundred sixty-five".