320240216265 has 32 divisors (see below), whose sum is σ = 515137536000. Its totient is φ = 169879170240.

The previous prime is 320240216213. The next prime is 320240216269. The reversal of 320240216265 is 562612042023.

It is a happy number.

It is not a de Polignac number, because 320240216265 - 2⁶ = 320240216201 is a prime.

It is a super-2 number, since 2×320240216265² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320240216269) 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, 2369176 + ... + 2500694.

It is an arithmetic number, because the mean of its divisors is an integer number (16098048000).

Almost surely, 2^320240216265 is an apocalyptic number.

It is an amenable number.

320240216265 is a deficient number, since it is larger than the sum of its proper divisors (194897319735).

320240216265 is a wasteful number, since it uses less digits than its factorization.

320240216265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132397.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 320240216265 its reverse (562612042023), we get a palindrome (882852258288).

The spelling of 320240216265 in words is "three hundred twenty billion, two hundred forty million, two hundred sixteen thousand, two hundred sixty-five".