22616544641 has 4 divisors (see below), whose sum is σ = 22621277952. Its totient is φ = 22611811332.

The previous prime is 22616544593. The next prime is 22616544653. The reversal of 22616544641 is 14644561622.

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 22616544641 - 2¹⁴ = 22616528257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22616544241) 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, 2359481 + ... + 2369046.

It is an arithmetic number, because the mean of its divisors is an integer number (5655319488).

Almost surely, 2^22616544641 is an apocalyptic number.

It is an amenable number.

22616544641 is a deficient number, since it is larger than the sum of its proper divisors (4733311).

22616544641 is an equidigital number, since it uses as much as digits as its factorization.

22616544641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733310.

The product of its digits is 276480, while the sum is 41.

The spelling of 22616544641 in words is "twenty-two billion, six hundred sixteen million, five hundred forty-four thousand, six hundred forty-one".