198060198985440 has 432 divisors, whose sum is σ = 786610486784304. Its totient is φ = 45190205153280.

The previous prime is 198060198985433. The next prime is 198060198985469. The reversal of 198060198985440 is 44589891060891.

198060198985440 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 6 + 0 + 1 + 98 + 98 + 5 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 30470542 + ... + 36394701.

It is an arithmetic number, because the mean of its divisors is an integer number (1820857608297).

Almost surely, 2^{198060198985440} is an apocalyptic number.

198060198985440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198060198985440 is an abundant number, since it is smaller than the sum of its proper divisors (588550287798864).

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

198060198985440 is a wasteful number, since it uses less digits than its factorization.

198060198985440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66865303 (or 66865281 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 72.

The spelling of 198060198985440 in words is "one hundred ninety-eight trillion, sixty billion, one hundred ninety-eight million, nine hundred eighty-five thousand, four hundred forty".