23041466581 has 4 divisors (see below), whose sum is σ = 26333104672. Its totient is φ = 19749828492.

The previous prime is 23041466533. The next prime is 23041466593. The reversal of 23041466581 is 18566414032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23041466581 - 2¹¹ = 23041464533 is a prime.

It is a super-2 number, since 2×23041466581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23041466531) 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 3 ways as a sum of consecutive naturals, for example, 1645819035 + ... + 1645819048.

It is an arithmetic number, because the mean of its divisors is an integer number (6583276168).

Almost surely, 2^23041466581 is an apocalyptic number.

It is an amenable number.

23041466581 is a deficient number, since it is larger than the sum of its proper divisors (3291638091).

23041466581 is an equidigital number, since it uses as much as digits as its factorization.

23041466581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291638090.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 23041466581 in words is "twenty-three billion, forty-one million, four hundred sixty-six thousand, five hundred eighty-one".