22633920545 has 4 divisors (see below), whose sum is σ = 27160704660. Its totient is φ = 18107136432.

The previous prime is 22633920521. The next prime is 22633920593. The reversal of 22633920545 is 54502933622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54502933622 = 2 ⋅27251466811.

It can be written as a sum of positive squares in 2 ways, for example, as 7418204641 + 15215715904 = 86129^2 + 123352^2 .

It is a cyclic number.

It is not a de Polignac number, because 22633920545 - 2¹⁶ = 22633855009 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263392050 + ... + 2263392059.

It is an arithmetic number, because the mean of its divisors is an integer number (6790176165).

Almost surely, 2^22633920545 is an apocalyptic number.

It is an amenable number.

22633920545 is a deficient number, since it is larger than the sum of its proper divisors (4526784115).

22633920545 is an equidigital number, since it uses as much as digits as its factorization.

22633920545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526784114.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 22633920545 in words is "twenty-two billion, six hundred thirty-three million, nine hundred twenty thousand, five hundred forty-five".