320216841065 has 16 divisors (see below), whose sum is σ = 424499201280. Its totient is φ = 229937061120.

The previous prime is 320216841053. The next prime is 320216841097. The reversal of 320216841065 is 560148612023.

It is not a de Polignac number, because 320216841065 - 2²⁴ = 320200063849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36844544 + ... + 36853233.

It is an arithmetic number, because the mean of its divisors is an integer number (26531200080).

Almost surely, 2^320216841065 is an apocalyptic number.

It is an amenable number.

320216841065 is a deficient number, since it is larger than the sum of its proper divisors (104282360215).

320216841065 is a wasteful number, since it uses less digits than its factorization.

320216841065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73697872.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 320216841065 in words is "three hundred twenty billion, two hundred sixteen million, eight hundred forty-one thousand, sixty-five".