998560000001 has 8 divisors (see below), whose sum is σ = 1019353567464. Its totient is φ = 977838759040.

The previous prime is 998559999977. The next prime is 998560000013. The reversal of 998560000001 is 100000065899.

It can be written as a sum of positive squares in 4 ways, for example, as 19251840001 + 979308160000 = 138751^2 + 989600^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 998560000001 - 2³⁰ = 997486258177 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 998560000001.

It is not an unprimeable number, because it can be changed into a prime (998560000051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18053726 + ... + 18108951.

It is an arithmetic number, because the mean of its divisors is an integer number (127419195933).

Almost surely, 2^998560000001 is an apocalyptic number.

It is an amenable number.

998560000001 is a deficient number, since it is larger than the sum of its proper divisors (20793567463).

998560000001 is a wasteful number, since it uses less digits than its factorization.

998560000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36163251.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 998560000001 in words is "nine hundred ninety-eight billion, five hundred sixty million, one", and thus it is an aban number.