64064311012 has 12 divisors (see below), whose sum is σ = 120736586236. Its totient is φ = 29568143520.

The previous prime is 64064310983. The next prime is 64064311019. The reversal of 64064311012 is 21011346046.

It can be written as a sum of positive squares in 2 ways, for example, as 19045656036 + 45018654976 = 138006^2 + 212176^2 .

It is not an unprimeable number, because it can be changed into a prime (64064311019) 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, 616002939 + ... + 616003042.

Almost surely, 2^64064311012 is an apocalyptic number.

It is an amenable number.

64064311012 is a deficient number, since it is larger than the sum of its proper divisors (56672275224).

64064311012 is a wasteful number, since it uses less digits than its factorization.

64064311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232005998 (or 1232005996 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 64064311012 its reverse (21011346046), we get a palindrome (85075657058).

The spelling of 64064311012 in words is "sixty-four billion, sixty-four million, three hundred eleven thousand, twelve".