18115241454224 has 10 divisors (see below), whose sum is σ = 35098280317590. Its totient is φ = 9057620727104.

The previous prime is 18115241454223. The next prime is 18115241454227. The reversal of 18115241454224 is 42245414251181.

It can be written as a sum of positive squares in only one way, i.e., 18026477977600 + 88763476624 = 4245760^2 + 297932^2 .

It is not an unprimeable number, because it can be changed into a prime (18115241454221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566101295429 + ... + 566101295460.

It is an arithmetic number, because the mean of its divisors is an integer number (3509828031759).

Almost surely, 2^{18115241454224} is an apocalyptic number.

It is an amenable number.

18115241454224 is a deficient number, since it is larger than the sum of its proper divisors (16983038863366).

18115241454224 is a wasteful number, since it uses less digits than its factorization.

18115241454224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132202590897 (or 1132202590891 counting only the distinct ones).

The product of its digits is 409600, while the sum is 44.

The spelling of 18115241454224 in words is "eighteen trillion, one hundred fifteen billion, two hundred forty-one million, four hundred fifty-four thousand, two hundred twenty-four".