1368683163648 has 260 divisors, whose sum is σ = 4126272604080. Its totient is φ = 452030201856.

The previous prime is 1368683163641. The next prime is 1368683163671. The reversal of 1368683163648 is 8463613868631.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1368683163641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36144661 + ... + 36182507.

Almost surely, 2^{1368683163648} is an apocalyptic number.

1368683163648 is a gapful number since it is divisible by the number (18) 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 1368683163648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063136302040).

1368683163648 is an abundant number, since it is smaller than the sum of its proper divisors (2757589440432).

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

1368683163648 is an equidigital number, since it uses as much as digits as its factorization.

1368683163648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37992 (or 37961 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 63.

The spelling of 1368683163648 in words is "one trillion, three hundred sixty-eight billion, six hundred eighty-three million, one hundred sixty-three thousand, six hundred forty-eight".