22105581578793 has 20 divisors (see below), whose sum is σ = 33022464003408. Its totient is φ = 14736810786840.

The previous prime is 22105581578767. The next prime is 22105581578813. The reversal of 22105581578793 is 39787518550122.

22105581578793 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 5 + 58 + 1 + 578 + 7 + 9 + 3 = 666.

It is not a de Polignac number, because 22105581578793 - 2¹² = 22105581574697 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22105581578793.

It is not an unprimeable number, because it can be changed into a prime (22105581578753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2742930 + ... + 7192692.

Almost surely, 2^{22105581578793} is an apocalyptic number.

It is an amenable number.

22105581578793 is a deficient number, since it is larger than the sum of its proper divisors (10916882424615).

22105581578793 is an equidigital number, since it uses as much as digits as its factorization.

22105581578793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511106 (or 4511097 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 63.

The spelling of 22105581578793 in words is "twenty-two trillion, one hundred five billion, five hundred eighty-one million, five hundred seventy-eight thousand, seven hundred ninety-three".