18004652366400 has 1008 divisors, whose sum is σ = 76235647213440. Its totient is φ = 3943025049600.

The previous prime is 18004652366369. The next prime is 18004652366411. The reversal of 18004652366400 is 466325640081.

18004652366400 is a `hidden beast` number, since 1 + 8 + 0 + 0 + 4 + 6 + 5 + 236 + 6 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 382915692 + ... + 382962708.

Almost surely, 2^{18004652366400} is an apocalyptic number.

18004652366400 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 18004652366400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38117823606720).

18004652366400 is an abundant number, since it is smaller than the sum of its proper divisors (58230994847040).

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

18004652366400 is a wasteful number, since it uses less digits than its factorization.

18004652366400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47212 (or 47194 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 18004652366400 in words is "eighteen trillion, four billion, six hundred fifty-two million, three hundred sixty-six thousand, four hundred".