2168493465600 has 2016 divisors, whose sum is σ = 10029394744320. Its totient is φ = 449622835200.

The previous prime is 2168493465557. The next prime is 2168493465613. The reversal of 2168493465600 is 65643948612.

2168493465600 is a `hidden beast` number, since 2 + 1 + 6 + 8 + 49 + 34 + 6 + 560 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4683570969 + ... + 4683571431.

Almost surely, 2^{2168493465600} is an apocalyptic number.

2168493465600 is a gapful number since it is divisible by the number (20) 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 2168493465600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5014697372160).

2168493465600 is an abundant number, since it is smaller than the sum of its proper divisors (7860901278720).

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

2168493465600 is a wasteful number, since it uses less digits than its factorization.

2168493465600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 2168493465600 in words is "two trillion, one hundred sixty-eight billion, four hundred ninety-three million, four hundred sixty-five thousand, six hundred".