665212003 has 8 divisors (see below), whose sum is σ = 711065376. Its totient is φ = 620769600.

The previous prime is 665212001. The next prime is 665212013. The reversal of 665212003 is 300212566.

665212003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 665212003 - 2¹ = 665212001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665212001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351768 + ... + 353653.

It is an arithmetic number, because the mean of its divisors is an integer number (88883172).

Almost surely, 2^665212003 is an apocalyptic number.

665212003 is a deficient number, since it is larger than the sum of its proper divisors (45853373).

665212003 is a wasteful number, since it uses less digits than its factorization.

665212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705485.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 665212003 is about 25791.7041507536. The cubic root of 665212003 is about 872.9446191601.

Adding to 665212003 its reverse (300212566), we get a palindrome (965424569).

The spelling of 665212003 in words is "six hundred sixty-five million, two hundred twelve thousand, three".