65216605664903 has 32 divisors (see below), whose sum is σ = 83392963264512. Its totient is φ = 49521150655200.

The previous prime is 65216605664869. The next prime is 65216605664933. The reversal of 65216605664903 is 30946650661256.

65216605664903 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65216605664903 - 2¹⁰ = 65216605663879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65216605664933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21423251 + ... + 24277332.

It is an arithmetic number, because the mean of its divisors is an integer number (2606030102016).

Almost surely, 2^{65216605664903} is an apocalyptic number.

65216605664903 is a deficient number, since it is larger than the sum of its proper divisors (18176357599609).

65216605664903 is a wasteful number, since it uses less digits than its factorization.

65216605664903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45701075.

The product of its (nonzero) digits is 41990400, while the sum is 59.

The spelling of 65216605664903 in words is "sixty-five trillion, two hundred sixteen billion, six hundred five million, six hundred sixty-four thousand, nine hundred three".