998650359180 has 144 divisors (see below), whose sum is σ = 3306772385280. Its totient is φ = 252290593728.

The previous prime is 998650359169. The next prime is 998650359181. The reversal of 998650359180 is 81953056899.

It is not an unprimeable number, because it can be changed into a prime (998650359181) 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 47 ways as a sum of consecutive naturals, for example, 5315124 + ... + 5499803.

It is an arithmetic number, because the mean of its divisors is an integer number (22963697120).

Almost surely, 2^998650359180 is an apocalyptic number.

998650359180 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

998650359180 is an abundant number, since it is smaller than the sum of its proper divisors (2308122026100).

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

998650359180 is a wasteful number, since it uses less digits than its factorization.

998650359180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10814970 (or 10814956 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 998650359180 in words is "nine hundred ninety-eight billion, six hundred fifty million, three hundred fifty-nine thousand, one hundred eighty".