18216014439198 has 8 divisors (see below), whose sum is σ = 36432028878408. Its totient is φ = 6072004813064.

The previous prime is 18216014439191. The next prime is 18216014439211. The reversal of 18216014439198 is 89193441061281.

It is a sphenic number, since it is the product of 3 distinct primes.

18216014439198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18216014439191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518001203261 + ... + 1518001203272.

It is an arithmetic number, because the mean of its divisors is an integer number (4554003609801).

Almost surely, 2^{18216014439198} is an apocalyptic number.

18216014439198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18216014439198 is a wasteful number, since it uses less digits than its factorization.

18216014439198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036002406538.

The product of its (nonzero) digits is 2985984, while the sum is 57.

The spelling of 18216014439198 in words is "eighteen trillion, two hundred sixteen billion, fourteen million, four hundred thirty-nine thousand, one hundred ninety-eight".