18224766456 has 32 divisors (see below), whose sum is σ = 49066679760. Its totient is φ = 5607620352.

The previous prime is 18224766451. The next prime is 18224766499. The reversal of 18224766456 is 65466742281.

It is a super-2 number, since 2×18224766456² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18224766399 and 18224766408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18224766451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29206045 + ... + 29206668.

Almost surely, 2^18224766456 is an apocalyptic number.

It is an amenable number.

18224766456 is an abundant number, since it is smaller than the sum of its proper divisors (30841913304).

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

18224766456 is a wasteful number, since it uses less digits than its factorization.

18224766456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58412735 (or 58412731 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 51.

The spelling of 18224766456 in words is "eighteen billion, two hundred twenty-four million, seven hundred sixty-six thousand, four hundred fifty-six".