166628095 has 16 divisors (see below), whose sum is σ = 203886720. Its totient is φ = 130693024.

The previous prime is 166628093. The next prime is 166628153. The reversal of 166628095 is 590826661.

It is not a de Polignac number, because 166628095 - 2¹ = 166628093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166628093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201072 + ... + 201898.

It is an arithmetic number, because the mean of its divisors is an integer number (12742920).

Almost surely, 2^166628095 is an apocalyptic number.

166628095 is a deficient number, since it is larger than the sum of its proper divisors (37258625).

166628095 is an equidigital number, since it uses as much as digits as its factorization.

166628095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 166628095 is about 12908.4505266899. The cubic root of 166628095 is about 550.2787512613.

The spelling of 166628095 in words is "one hundred sixty-six million, six hundred twenty-eight thousand, ninety-five".