1998596768256 has 200 divisors, whose sum is σ = 6507585233424. Its totient is φ = 605635246080.

The previous prime is 1998596768239. The next prime is 1998596768263. The reversal of 1998596768256 is 6528676958991.

1998596768256 is a `hidden beast` number, since 19 + 9 + 8 + 596 + 7 + 6 + 8 + 2 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1734330 + ... + 2646713.

Almost surely, 2^{1998596768256} is an apocalyptic number.

1998596768256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1998596768256 is an abundant number, since it is smaller than the sum of its proper divisors (4508988465168).

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

1998596768256 is an equidigital number, since it uses as much as digits as its factorization.

1998596768256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381084 (or 4381059 counting only the distinct ones).

The product of its digits is 3527193600, while the sum is 81.

The spelling of 1998596768256 in words is "one trillion, nine hundred ninety-eight billion, five hundred ninety-six million, seven hundred sixty-eight thousand, two hundred fifty-six".