166928418 has 16 divisors (see below), whose sum is σ = 370952160. Its totient is φ = 55642788.

The previous prime is 166928413. The next prime is 166928431. The reversal of 166928418 is 814829661.

It is not an unprimeable number, because it can be changed into a prime (166928413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545580 + ... + 1545687.

It is an arithmetic number, because the mean of its divisors is an integer number (23184510).

Almost surely, 2^166928418 is an apocalyptic number.

166928418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

166928418 is an abundant number, since it is smaller than the sum of its proper divisors (204023742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166928418 is a wasteful number, since it uses less digits than its factorization.

166928418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091278 (or 3091272 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 166928418 is about 12920.0780957392. The cubic root of 166928418 is about 550.6091520822.

The spelling of 166928418 in words is "one hundred sixty-six million, nine hundred twenty-eight thousand, four hundred eighteen".