22945908161 has 4 divisors (see below), whose sum is σ = 25031899824. Its totient is φ = 20859916500.

The previous prime is 22945908143. The next prime is 22945908173. The reversal of 22945908161 is 16180954922.

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 22945908161 - 2²² = 22941713857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22945908101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042995815 + ... + 1042995836.

It is an arithmetic number, because the mean of its divisors is an integer number (6257974956).

Almost surely, 2^22945908161 is an apocalyptic number.

It is an amenable number.

22945908161 is a deficient number, since it is larger than the sum of its proper divisors (2085991663).

22945908161 is a wasteful number, since it uses less digits than its factorization.

22945908161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085991662.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 22945908161 in words is "twenty-two billion, nine hundred forty-five million, nine hundred eight thousand, one hundred sixty-one".