23320442523465 has 48 divisors (see below), whose sum is σ = 40562054179920. Its totient is φ = 12394510824960.

The previous prime is 23320442523463. The next prime is 23320442523503. The reversal of 23320442523465 is 56432524402332.

23320442523465 is a `hidden beast` number, since 2 + 3 + 3 + 20 + 4 + 42 + 523 + 4 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2930273424 + 23317512250041 = 54132^2 + 4828821^2 .

It is not a de Polignac number, because 23320442523465 - 2¹ = 23320442523463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23320442523465.

It is not an unprimeable number, because it can be changed into a prime (23320442523463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427549095 + ... + 427603635.

It is an arithmetic number, because the mean of its divisors is an integer number (845042795415).

Almost surely, 2^{23320442523465} is an apocalyptic number.

It is an amenable number.

23320442523465 is a deficient number, since it is larger than the sum of its proper divisors (17241611656455).

23320442523465 is a wasteful number, since it uses less digits than its factorization.

23320442523465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87274 (or 87271 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 45.

Adding to 23320442523465 its reverse (56432524402332), we get a palindrome (79752966925797).

The spelling of 23320442523465 in words is "twenty-three trillion, three hundred twenty billion, four hundred forty-two million, five hundred twenty-three thousand, four hundred sixty-five".