22236043661 has 48 divisors (see below), whose sum is σ = 26548247040. Its totient is φ = 18479767680.

The previous prime is 22236043651. The next prime is 22236043667. The reversal of 22236043661 is 16634063222.

It is not a de Polignac number, because 22236043661 - 2⁶ = 22236043597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22236043667) 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 47 ways as a sum of consecutive naturals, for example, 7886510 + ... + 7889328.

It is an arithmetic number, because the mean of its divisors is an integer number (553088480).

Almost surely, 2^22236043661 is an apocalyptic number.

It is an amenable number.

22236043661 is a deficient number, since it is larger than the sum of its proper divisors (4312203379).

22236043661 is a wasteful number, since it uses less digits than its factorization.

22236043661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2923 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 22236043661 in words is "twenty-two billion, two hundred thirty-six million, forty-three thousand, six hundred sixty-one".