22617264545 has 4 divisors (see below), whose sum is σ = 27140717460. Its totient is φ = 18093811632.

The previous prime is 22617264533. The next prime is 22617264547. The reversal of 22617264545 is 54546271622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7381559056 + 15235705489 = 85916^2 + 123433^2 .

It is a cyclic number.

It is not a de Polignac number, because 22617264545 - 2¹⁶ = 22617199009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22617264496 and 22617264505.

It is not an unprimeable number, because it can be changed into a prime (22617264547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261726450 + ... + 2261726459.

It is an arithmetic number, because the mean of its divisors is an integer number (6785179365).

Almost surely, 2^22617264545 is an apocalyptic number.

It is an amenable number.

22617264545 is a deficient number, since it is larger than the sum of its proper divisors (4523452915).

22617264545 is an equidigital number, since it uses as much as digits as its factorization.

22617264545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523452914.

The product of its digits is 806400, while the sum is 44.

The spelling of 22617264545 in words is "twenty-two billion, six hundred seventeen million, two hundred sixty-four thousand, five hundred forty-five".