64432045646012 has 12 divisors (see below), whose sum is σ = 123006632597016. Its totient is φ = 29287293475440.

The previous prime is 64432045645993. The next prime is 64432045646027. The reversal of 64432045646012 is 21064654023446.

It is a super-2 number, since 2×64432045646012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732182336843 + ... + 732182336930.

It is an arithmetic number, because the mean of its divisors is an integer number (10250552716418).

Almost surely, 2^{64432045646012} is an apocalyptic number.

It is an amenable number.

64432045646012 is a deficient number, since it is larger than the sum of its proper divisors (58574586951004).

64432045646012 is a wasteful number, since it uses less digits than its factorization.

64432045646012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464364673788 (or 1464364673786 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

Adding to 64432045646012 its reverse (21064654023446), we get a palindrome (85496699669458).

The spelling of 64432045646012 in words is "sixty-four trillion, four hundred thirty-two billion, forty-five million, six hundred forty-six thousand, twelve".