665224080212 has 12 divisors (see below), whose sum is σ = 1169270521440. Its totient is φ = 331146788376.

The previous prime is 665224080211. The next prime is 665224080263. The reversal of 665224080212 is 212080422566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665224080211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366311912 + ... + 366313727.

It is an arithmetic number, because the mean of its divisors is an integer number (97439210120).

Almost surely, 2^665224080212 is an apocalyptic number.

It is an amenable number.

665224080212 is a deficient number, since it is larger than the sum of its proper divisors (504046441228).

665224080212 is a wasteful number, since it uses less digits than its factorization.

665224080212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732625870 (or 732625868 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 665224080212 in words is "six hundred sixty-five billion, two hundred twenty-four million, eighty thousand, two hundred twelve".