5643664043065 has 16 divisors (see below), whose sum is σ = 7130990966400. Its totient is φ = 4276011969792.

The previous prime is 5643664043063. The next prime is 5643664043077. The reversal of 5643664043065 is 5603404663465.

It is not a de Polignac number, because 5643664043065 - 2¹ = 5643664043063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5643664043063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8651005 + ... + 9280474.

It is an arithmetic number, because the mean of its divisors is an integer number (445686935400).

Almost surely, 2^{5643664043065} is an apocalyptic number.

It is an amenable number.

5643664043065 is a deficient number, since it is larger than the sum of its proper divisors (1487326923335).

5643664043065 is a wasteful number, since it uses less digits than its factorization.

5643664043065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934816.

The product of its (nonzero) digits is 18662400, while the sum is 52.

The spelling of 5643664043065 in words is "five trillion, six hundred forty-three billion, six hundred sixty-four million, forty-three thousand, sixty-five".