666133332 has 48 divisors (see below), whose sum is σ = 1608499200. Its totient is φ = 214339680.

The previous prime is 666133271. The next prime is 666133357. The reversal of 666133332 is 233331666.

666133332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 666133293 and 666133302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161269 + ... + 165347.

It is an arithmetic number, because the mean of its divisors is an integer number (33510400).

Almost surely, 2^666133332 is an apocalyptic number.

666133332 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

666133332 is an abundant number, since it is smaller than the sum of its proper divisors (942365868).

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

666133332 is a wasteful number, since it uses less digits than its factorization.

666133332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556 (or 4554 counting only the distinct ones).

The product of its digits is 34992, while the sum is 33.

The square root of 666133332 is about 25809.5589268782. The cubic root of 666133332 is about 873.3474472141.

Adding to 666133332 its reverse (233331666), we get a palindrome (899464998).

It can be divided in two parts, 6661 and 33332, that added together give a palindrome (39993).

The spelling of 666133332 in words is "six hundred sixty-six million, one hundred thirty-three thousand, three hundred thirty-two".