1998360301806 has 48 divisors (see below), whose sum is σ = 4838601903408. Its totient is φ = 590793878400.

The previous prime is 1998360301783. The next prime is 1998360301823. The reversal of 1998360301806 is 6081030638991.

1998360301806 is a `hidden beast` number, since 19 + 9 + 8 + 3 + 603 + 0 + 18 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123073941 + ... + 123090176.

It is an arithmetic number, because the mean of its divisors is an integer number (100804206321).

Almost surely, 2^{1998360301806} is an apocalyptic number.

1998360301806 is an abundant number, since it is smaller than the sum of its proper divisors (2840241601602).

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

1998360301806 is a wasteful number, since it uses less digits than its factorization.

1998360301806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246164177 (or 246164174 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 1998360301806 in words is "one trillion, nine hundred ninety-eight billion, three hundred sixty million, three hundred one thousand, eight hundred six".