660224821201 has 12 divisors (see below), whose sum is σ = 727216761600. Its totient is φ = 598951294040.

The previous prime is 660224821199. The next prime is 660224821271. The reversal of 660224821201 is 102128422066.

It is not a de Polignac number, because 660224821201 - 2¹ = 660224821199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660224821271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5637661 + ... + 5753578.

It is an arithmetic number, because the mean of its divisors is an integer number (60601396800).

Almost surely, 2^660224821201 is an apocalyptic number.

It is an amenable number.

660224821201 is a deficient number, since it is larger than the sum of its proper divisors (66991940399).

660224821201 is a wasteful number, since it uses less digits than its factorization.

660224821201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11391740 (or 11391729 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 660224821201 in words is "six hundred sixty billion, two hundred twenty-four million, eight hundred twenty-one thousand, two hundred one".