1666430110 has 16 divisors (see below), whose sum is σ = 3096335232. Its totient is φ = 645069600.

The previous prime is 1666430071. The next prime is 1666430113. The reversal of 1666430110 is 110346661.

It is a super-2 number, since 2×1666430110² = 5553978623029224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666430113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2687481 + ... + 2688100.

It is an arithmetic number, because the mean of its divisors is an integer number (193520952).

Almost surely, 2^1666430110 is an apocalyptic number.

1666430110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666430110 is a deficient number, since it is larger than the sum of its proper divisors (1429905122).

1666430110 is a wasteful number, since it uses less digits than its factorization.

1666430110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375619.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1666430110 is about 40821.9317279327. The cubic root of 1666430110 is about 1185.5750050544.

Adding to 1666430110 its reverse (110346661), we get a palindrome (1776776771).

The spelling of 1666430110 in words is "one billion, six hundred sixty-six million, four hundred thirty thousand, one hundred ten".