64446040066041 has 6 divisors (see below), whose sum is σ = 93088724539850. Its totient is φ = 42964026710688.

The previous prime is 64446040066027. The next prime is 64446040066097. The reversal of 64446040066041 is 14066004064446.

It can be written as a sum of positive squares in only one way, i.e., 57577683296016 + 6868356770025 = 7587996^2 + 2620755^2 .

It is not a de Polignac number, because 64446040066041 - 2¹³ = 64446040057849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64446040066021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3580335559216 + ... + 3580335559233.

Almost surely, 2^{64446040066041} is an apocalyptic number.

It is an amenable number.

64446040066041 is a deficient number, since it is larger than the sum of its proper divisors (28642684473809).

64446040066041 is a wasteful number, since it uses less digits than its factorization.

64446040066041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7160671118455 (or 7160671118452 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 64446040066041 in words is "sixty-four trillion, four hundred forty-six billion, forty million, sixty-six thousand, forty-one".