646003343112 has 32 divisors (see below), whose sum is σ = 1617704568000. Its totient is φ = 214974953024.

The previous prime is 646003343071. The next prime is 646003343129. The reversal of 646003343112 is 211343300646.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22453743 + ... + 22482494.

It is an arithmetic number, because the mean of its divisors is an integer number (50553267750).

Almost surely, 2^646003343112 is an apocalyptic number.

It is an amenable number.

646003343112 is an abundant number, since it is smaller than the sum of its proper divisors (971701224888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646003343112 is a wasteful number, since it uses less digits than its factorization.

646003343112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44936845 (or 44936841 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 646003343112 its reverse (211343300646), we get a palindrome (857346643758).

The spelling of 646003343112 in words is "six hundred forty-six billion, three million, three hundred forty-three thousand, one hundred twelve".