22453641661 has 16 divisors (see below), whose sum is σ = 24560665920. Its totient is φ = 20357665920.

The previous prime is 22453641643. The next prime is 22453641731. The reversal of 22453641661 is 16614635422.

It is a cyclic number.

It is not a de Polignac number, because 22453641661 - 2⁹ = 22453641149 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 (22453641631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11379471 + ... + 11381443.

It is an arithmetic number, because the mean of its divisors is an integer number (1535041620).

Almost surely, 2^22453641661 is an apocalyptic number.

It is an amenable number.

22453641661 is a deficient number, since it is larger than the sum of its proper divisors (2107024259).

22453641661 is a wasteful number, since it uses less digits than its factorization.

22453641661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its digits is 207360, while the sum is 40.

The spelling of 22453641661 in words is "twenty-two billion, four hundred fifty-three million, six hundred forty-one thousand, six hundred sixty-one".