18246224115 has 48 divisors (see below), whose sum is σ = 38047276800. Its totient is φ = 7902121536.

The previous prime is 18246224111. The next prime is 18246224131. The reversal of 18246224115 is 51142264281.

18246224115 is a `hidden beast` number, since 1 + 8 + 24 + 622 + 4 + 1 + 1 + 5 = 666.

It is not a de Polignac number, because 18246224115 - 2² = 18246224111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18246224115.

It is not an unprimeable number, because it can be changed into a prime (18246224111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1518345 + ... + 1530314.

It is an arithmetic number, because the mean of its divisors is an integer number (792651600).

Almost surely, 2^18246224115 is an apocalyptic number.

18246224115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18246224115 is an abundant number, since it is smaller than the sum of its proper divisors (19801052685).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18246224115 is a wasteful number, since it uses less digits than its factorization.

18246224115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048696 (or 3048693 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

Adding to 18246224115 its reverse (51142264281), we get a palindrome (69388488396).

The spelling of 18246224115 in words is "eighteen billion, two hundred forty-six million, two hundred twenty-four thousand, one hundred fifteen".