20660222416245 has 16 divisors (see below), whose sum is σ = 33089511713280. Its totient is φ = 11007733339584.

The previous prime is 20660222416243. The next prime is 20660222416277. The reversal of 20660222416245 is 54261422206602.

It is not a de Polignac number, because 20660222416245 - 2¹ = 20660222416243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20660222416197 and 20660222416206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20660222416243) 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, 690731365 + ... + 690761274.

It is an arithmetic number, because the mean of its divisors is an integer number (2068094482080).

Almost surely, 2^{20660222416245} is an apocalyptic number.

It is an amenable number.

20660222416245 is a deficient number, since it is larger than the sum of its proper divisors (12429289297035).

20660222416245 is a wasteful number, since it uses less digits than its factorization.

20660222416245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381493644.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 20660222416245 in words is "twenty trillion, six hundred sixty billion, two hundred twenty-two million, four hundred sixteen thousand, two hundred forty-five".