20198000361599 has 8 divisors (see below), whose sum is σ = 20429734380000. Its totient is φ = 19967110548192.

The previous prime is 20198000361569. The next prime is 20198000361629. The reversal of 20198000361599 is 99516300089102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20198000361569) and next prime (20198000361629).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20198000361599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20198000361599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20198000361509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211003124 + ... + 211098825.

It is an arithmetic number, because the mean of its divisors is an integer number (2553716797500).

Almost surely, 2^{20198000361599} is an apocalyptic number.

20198000361599 is a deficient number, since it is larger than the sum of its proper divisors (231734018401).

20198000361599 is a wasteful number, since it uses less digits than its factorization.

20198000361599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422102497.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 20198000361599 in words is "twenty trillion, one hundred ninety-eight billion, three hundred sixty-one thousand, five hundred ninety-nine".