22118613448 has 8 divisors (see below), whose sum is σ = 41472400230. Its totient is φ = 11059306720.

The previous prime is 22118613401. The next prime is 22118613449. The reversal of 22118613448 is 84431681122.

It can be written as a sum of positive squares in only one way, i.e., 14893273444 + 7225340004 = 122038^2 + 85002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22118613448.

It is not an unprimeable number, because it can be changed into a prime (22118613449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382413333 + ... + 1382413348.

Almost surely, 2^22118613448 is an apocalyptic number.

It is an amenable number.

22118613448 is a deficient number, since it is larger than the sum of its proper divisors (19353786782).

22118613448 is a wasteful number, since it uses less digits than its factorization.

22118613448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764826687 (or 2764826683 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The spelling of 22118613448 in words is "twenty-two billion, one hundred eighteen million, six hundred thirteen thousand, four hundred forty-eight".