646065046132 has 48 divisors (see below), whose sum is σ = 1281275501184. Its totient is φ = 282468032000.

The previous prime is 646065046111. The next prime is 646065046141. The reversal of 646065046132 is 231640560646.

It is a super-2 number, since 2×646065046132² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2393953 + ... + 2650120.

It is an arithmetic number, because the mean of its divisors is an integer number (26693239608).

Almost surely, 2^646065046132 is an apocalyptic number.

It is an amenable number.

646065046132 is a deficient number, since it is larger than the sum of its proper divisors (635210455052).

646065046132 is a wasteful number, since it uses less digits than its factorization.

646065046132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044200 (or 5044198 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 646065046132 in words is "six hundred forty-six billion, sixty-five million, forty-six thousand, one hundred thirty-two".