23155053134565 has 32 divisors (see below), whose sum is σ = 40418639056512. Its totient is φ = 11225985120000.

The previous prime is 23155053134561. The next prime is 23155053134567. The reversal of 23155053134565 is 56543135055132.

It is not a de Polignac number, because 23155053134565 - 2² = 23155053134561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155053134561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1789066 + ... + 7036395.

It is an arithmetic number, because the mean of its divisors is an integer number (1263082470516).

Almost surely, 2^{23155053134565} is an apocalyptic number.

It is an amenable number.

23155053134565 is a deficient number, since it is larger than the sum of its proper divisors (17263585921947).

23155053134565 is a wasteful number, since it uses less digits than its factorization.

23155053134565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8841381.

The product of its (nonzero) digits is 4050000, while the sum is 48.

Adding to 23155053134565 its reverse (56543135055132), we get a palindrome (79698188189697).

The spelling of 23155053134565 in words is "twenty-three trillion, one hundred fifty-five billion, fifty-three million, one hundred thirty-four thousand, five hundred sixty-five".