6198818855040 has 640 divisors, whose sum is σ = 25358615694720. Its totient is φ = 1413564825600.

The previous prime is 6198818855027. The next prime is 6198818855071. The reversal of 6198818855040 is 405588188916.

6198818855040 is a `hidden beast` number, since 61 + 9 + 8 + 8 + 18 + 8 + 550 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 157107315 + ... + 157146765.

It is an arithmetic number, because the mean of its divisors is an integer number (39622837023).

Almost surely, 2^{6198818855040} is an apocalyptic number.

6198818855040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6198818855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12679307847360).

6198818855040 is an abundant number, since it is smaller than the sum of its proper divisors (19159796839680).

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

6198818855040 is a wasteful number, since it uses less digits than its factorization.

6198818855040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39922 (or 39901 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 63.

The spelling of 6198818855040 in words is "six trillion, one hundred ninety-eight billion, eight hundred eighteen million, eight hundred fifty-five thousand, forty".