18204198210000 has 600 divisors, whose sum is σ = 69495919137216. Its totient is φ = 4410236160000.

The previous prime is 18204198209993. The next prime is 18204198210067. The reversal of 18204198210000 is 1289140281.

It is a happy number.

18204198210000 is a `hidden beast` number, since 1 + 8 + 20 + 419 + 8 + 210 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1765164844 + ... + 1765175156.

Almost surely, 2^{18204198210000} is an apocalyptic number.

18204198210000 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 18204198210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34747959568608).

18204198210000 is an abundant number, since it is smaller than the sum of its proper divisors (51291720927216).

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

18204198210000 is a wasteful number, since it uses less digits than its factorization.

18204198210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12141 (or 12117 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 18204198210000 in words is "eighteen trillion, two hundred four billion, one hundred ninety-eight million, two hundred ten thousand".