23165172423 has 20 divisors (see below), whose sum is σ = 35341041120. Its totient is φ = 15114861792.

The previous prime is 23165172413. The next prime is 23165172497. The reversal of 23165172423 is 32427156132.

23165172423 is a `hidden beast` number, since 2 + 3 + 1 + 65 + 172 + 423 = 666.

It is not a de Polignac number, because 23165172423 - 2⁸ = 23165172167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23165172403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3038638 + ... + 3046251.

It is an arithmetic number, because the mean of its divisors is an integer number (1767052056).

Almost surely, 2^23165172423 is an apocalyptic number.

23165172423 is a deficient number, since it is larger than the sum of its proper divisors (12175868697).

23165172423 is an equidigital number, since it uses as much as digits as its factorization.

23165172423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084948 (or 6084939 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The spelling of 23165172423 in words is "twenty-three billion, one hundred sixty-five million, one hundred seventy-two thousand, four hundred twenty-three".