666032330 has 8 divisors (see below), whose sum is σ = 1198858212. Its totient is φ = 266412928.

The previous prime is 666032317. The next prime is 666032351. The reversal of 666032330 is 33230666.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 664969369 + 1062961 = 25787^2 + 1031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 666032293 and 666032302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33301607 + ... + 33301626.

Almost surely, 2^666032330 is an apocalyptic number.

666032330 is a deficient number, since it is larger than the sum of its proper divisors (532825882).

666032330 is a wasteful number, since it uses less digits than its factorization.

666032330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66603240.

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 666032330 is about 25807.6021745531. The cubic root of 666032330 is about 873.3033047513.

Subtracting from 666032330 its product of nonzero digits (11664), we obtain a palindrome (666020666).

Adding to 666032330 its reverse (33230666), we get a palindrome (699262996).

The spelling of 666032330 in words is "six hundred sixty-six million, thirty-two thousand, three hundred thirty".