5491644480000 has 3200 divisors, whose sum is σ = 25157746944000. Its totient is φ = 1169012736000.

The previous prime is 5491644479987. The next prime is 5491644480011. The reversal of 5491644480000 is 844461945.

5491644480000 is a `hidden beast` number, since 5 + 4 + 9 + 164 + 4 + 480 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3200).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 93078719971 + ... + 93078720029.

It is an arithmetic number, because the mean of its divisors is an integer number (7861795920).

Almost surely, 2^{5491644480000} is an apocalyptic number.

5491644480000 is a gapful number since it is divisible by the number (50) 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 5491644480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12578873472000).

5491644480000 is an abundant number, since it is smaller than the sum of its proper divisors (19666102464000).

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

5491644480000 is an frugal number, since it uses more digits than its factorization.

5491644480000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 5491644480000 in words is "five trillion, four hundred ninety-one billion, six hundred forty-four million, four hundred eighty thousand".