666412110 has 160 divisors (see below), whose sum is σ = 2205669312. Its totient is φ = 140590080.

The previous prime is 666412049. The next prime is 666412127. The reversal of 666412110 is 11214666.

666412110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 69190 + ... + 78230.

Almost surely, 2^666412110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666412110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102834656).

666412110 is an abundant number, since it is smaller than the sum of its proper divisors (1539257202).

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

666412110 is a wasteful number, since it uses less digits than its factorization.

666412110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9080 (or 9071 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 666412110 is about 25814.9590354120. The cubic root of 666412110 is about 873.4692627159.

Adding to 666412110 its reverse (11214666), we get a palindrome (677626776).

The spelling of 666412110 in words is "six hundred sixty-six million, four hundred twelve thousand, one hundred ten".