166420110 has 32 divisors (see below), whose sum is σ = 403080480. Its totient is φ = 43970688.

The previous prime is 166420109. The next prime is 166420127. The reversal of 166420110 is 11024661.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 22177 + ... + 28716.

It is an arithmetic number, because the mean of its divisors is an integer number (12596265).

Almost surely, 2^166420110 is an apocalyptic number.

166420110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166420110 is an abundant number, since it is smaller than the sum of its proper divisors (236660370).

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

166420110 is a wasteful number, since it uses less digits than its factorization.

166420110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51012.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 166420110 is about 12900.3918545136. The cubic root of 166420110 is about 550.0497034971.

Adding to 166420110 its reverse (11024661), we get a palindrome (177444771).

The spelling of 166420110 in words is "one hundred sixty-six million, four hundred twenty thousand, one hundred ten".