660322212211 has 6 divisors (see below), whose sum is σ = 667824934412. Its totient is φ = 652902853680.

The previous prime is 660322212197. The next prime is 660322212227. The reversal of 660322212211 is 112212223066.

It is not a de Polignac number, because 660322212211 - 2¹³ = 660322204019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660322212211.

It is not an unprimeable number, because it can be changed into a prime (660322212281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41673825 + ... + 41689666.

Almost surely, 2^660322212211 is an apocalyptic number.

660322212211 is a deficient number, since it is larger than the sum of its proper divisors (7502722201).

660322212211 is an frugal number, since it uses more digits than its factorization.

660322212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83363669 (or 83363580 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 660322212211 its reverse (112212223066), we get a palindrome (772534435277).

The spelling of 660322212211 in words is "six hundred sixty billion, three hundred twenty-two million, two hundred twelve thousand, two hundred eleven".