23329631161 has 4 divisors (see below), whose sum is σ = 23335252852. Its totient is φ = 23324009472.

The previous prime is 23329631153. The next prime is 23329631177. The reversal of 23329631161 is 16113692332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9490461561 + 13839169600 = 97419^2 + 117640^2 .

It is a cyclic number.

It is not a de Polignac number, because 23329631161 - 2³ = 23329631153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23329631161.

It is not an unprimeable number, because it can be changed into a prime (23329631191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804616 + ... + 2812921.

It is an arithmetic number, because the mean of its divisors is an integer number (5833813213).

Almost surely, 2^23329631161 is an apocalyptic number.

It is an amenable number.

23329631161 is a deficient number, since it is larger than the sum of its proper divisors (5621691).

23329631161 is an equidigital number, since it uses as much as digits as its factorization.

23329631161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621690.

The product of its digits is 34992, while the sum is 37.

The spelling of 23329631161 in words is "twenty-three billion, three hundred twenty-nine million, six hundred thirty-one thousand, one hundred sixty-one".