23006561641 has 4 divisors (see below), whose sum is σ = 26293213312. Its totient is φ = 19719909972.

The previous prime is 23006561629. The next prime is 23006561651. The reversal of 23006561641 is 14616560032.

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 not a de Polignac number, because 23006561641 - 2⁹ = 23006561129 is a prime.

It is a super-2 number, since 2×23006561641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23006561597 and 23006561606.

It is not an unprimeable number, because it can be changed into a prime (23006561651) 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, 1643325825 + ... + 1643325838.

It is an arithmetic number, because the mean of its divisors is an integer number (6573303328).

Almost surely, 2^23006561641 is an apocalyptic number.

It is an amenable number.

23006561641 is a deficient number, since it is larger than the sum of its proper divisors (3286651671).

23006561641 is an equidigital number, since it uses as much as digits as its factorization.

23006561641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286651670.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 23006561641 in words is "twenty-three billion, six million, five hundred sixty-one thousand, six hundred forty-one".