22680620645 has 8 divisors (see below), whose sum is σ = 27234324600. Its totient is φ = 18132776640.

The previous prime is 22680620621. The next prime is 22680620647. The reversal of 22680620645 is 54602608622.

It can be written as a sum of positive squares in 4 ways, for example, as 7541532964 + 15139087681 = 86842^2 + 123041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22680620645 - 2¹⁶ = 22680555109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680620647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456466 + ... + 1471955.

It is an arithmetic number, because the mean of its divisors is an integer number (3404290575).

Almost surely, 2^22680620645 is an apocalyptic number.

It is an amenable number.

22680620645 is a deficient number, since it is larger than the sum of its proper divisors (4553703955).

22680620645 is a wasteful number, since it uses less digits than its factorization.

22680620645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929975.

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

The spelling of 22680620645 in words is "twenty-two billion, six hundred eighty million, six hundred twenty thousand, six hundred forty-five".