22620646044247 has 2 divisors, whose sum is σ = 22620646044248. Its totient is φ = 22620646044246.

The previous prime is 22620646044233. The next prime is 22620646044257. The reversal of 22620646044247 is 74244064602622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22620646044247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22620646044247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22620646044257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11310323022123 + 11310323022124.

It is an arithmetic number, because the mean of its divisors is an integer number (11310323022124).

Almost surely, 2^{22620646044247} is an apocalyptic number.

22620646044247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22620646044247 is an equidigital number, since it uses as much as digits as its factorization.

22620646044247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6193152, while the sum is 49.

The spelling of 22620646044247 in words is "twenty-two trillion, six hundred twenty billion, six hundred forty-six million, forty-four thousand, two hundred forty-seven".