8384566465 has 16 divisors (see below), whose sum is σ = 10980207360. Its totient is φ = 6095617920.

The previous prime is 8384566453. The next prime is 8384566493. The reversal of 8384566465 is 5646654838.

It is not a de Polignac number, because 8384566465 - 2²¹ = 8382469313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 130456 + ... + 183814.

It is an arithmetic number, because the mean of its divisors is an integer number (686262960).

Almost surely, 2^8384566465 is an apocalyptic number.

It is an amenable number.

8384566465 is a deficient number, since it is larger than the sum of its proper divisors (2595640895).

8384566465 is a wasteful number, since it uses less digits than its factorization.

8384566465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56232.

The product of its digits is 16588800, while the sum is 55.

The square root of 8384566465 is about 91567.2783531322. The cubic root of 8384566465 is about 2031.5469830195.

It can be divided in two parts, 83 and 84566465, that added together give a palindrome (84566548).

The spelling of 8384566465 in words is "eight billion, three hundred eighty-four million, five hundred sixty-six thousand, four hundred sixty-five".