22245169949 has 4 divisors (see below), whose sum is σ = 22252003164. Its totient is φ = 22238336736.

The previous prime is 22245169939. The next prime is 22245169957. The reversal of 22245169949 is 94996154222.

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 7381902724 + 14863267225 = 85918^2 + 121915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22245169949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22245169949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245169939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411722 + ... + 3418235.

It is an arithmetic number, because the mean of its divisors is an integer number (5563000791).

Almost surely, 2^22245169949 is an apocalyptic number.

It is an amenable number.

22245169949 is a deficient number, since it is larger than the sum of its proper divisors (6833215).

22245169949 is an equidigital number, since it uses as much as digits as its factorization.

22245169949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833214.

The product of its digits is 2799360, while the sum is 53.

The spelling of 22245169949 in words is "twenty-two billion, two hundred forty-five million, one hundred sixty-nine thousand, nine hundred forty-nine".