331211066 has 8 divisors (see below), whose sum is σ = 498796704. Its totient is φ = 164945500.

The previous prime is 331211053. The next prime is 331211071. The reversal of 331211066 is 660112133.

It is a happy number.

331211066 is digitally balanced in base 3, 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 an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 329390 + ... + 330393.

It is an arithmetic number, because the mean of its divisors is an integer number (62349588).

Almost surely, 2^331211066 is an apocalyptic number.

331211066 is a deficient number, since it is larger than the sum of its proper divisors (167585638).

331211066 is a wasteful number, since it uses less digits than its factorization.

331211066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660036.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 331211066 is about 18199.2050925308. The cubic root of 331211066 is about 691.8866423626.

Adding to 331211066 its reverse (660112133), we get a palindrome (991323199).

The spelling of 331211066 in words is "three hundred thirty-one million, two hundred eleven thousand, sixty-six".