18264225600 has 336 divisors, whose sum is σ = 67124275200. Its totient is φ = 4830658560.

The previous prime is 18264225593. The next prime is 18264225601. The reversal of 18264225600 is 652246281.

It is a happy number.

18264225600 is a `hidden beast` number, since 1 + 8 + 2 + 6 + 42 + 2 + 5 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18264225601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5484736 + ... + 5488064.

Almost surely, 2^18264225600 is an apocalyptic number.

18264225600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18264225600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33562137600).

18264225600 is an abundant number, since it is smaller than the sum of its proper divisors (48860049600).

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

18264225600 is a wasteful number, since it uses less digits than its factorization.

18264225600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487 (or 3466 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 18264225600 in words is "eighteen billion, two hundred sixty-four million, two hundred twenty-five thousand, six hundred".