8998436498165 has 4 divisors (see below), whose sum is σ = 10798123797804. Its totient is φ = 7198749198528.

The previous prime is 8998436498143. The next prime is 8998436498167. The reversal of 8998436498165 is 5618946348998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2004939889681 + 6993496608484 = 1415959^2 + 2644522^2 .

It is a cyclic number.

It is not a de Polignac number, because 8998436498165 - 2⁶ = 8998436498101 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 8998436498165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8998436498167) 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 3 ways as a sum of consecutive naturals, for example, 899843649812 + ... + 899843649821.

It is an arithmetic number, because the mean of its divisors is an integer number (2699530949451).

Almost surely, 2^{8998436498165} is an apocalyptic number.

It is an amenable number.

8998436498165 is a deficient number, since it is larger than the sum of its proper divisors (1799687299639).

8998436498165 is a wasteful number, since it uses less digits than its factorization.

8998436498165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799687299638.

The product of its digits is 3224862720, while the sum is 80.

The spelling of 8998436498165 in words is "eight trillion, nine hundred ninety-eight billion, four hundred thirty-six million, four hundred ninety-eight thousand, one hundred sixty-five".