6673421520000 has 960 divisors, whose sum is σ = 25149070346400. Its totient is φ = 1760735232000.

The previous prime is 6673421519881. The next prime is 6673421520013. The reversal of 6673421520000 is 251243766.

6673421520000 is a `hidden beast` number, since 66 + 73 + 4 + 2 + 1 + 520 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a super-2 number, since 2×6673421520000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1885678231 + ... + 1885681769.

Almost surely, 2^{6673421520000} is an apocalyptic number.

6673421520000 is a gapful number since it is divisible by the number (60) 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 6673421520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12574535173200).

6673421520000 is an abundant number, since it is smaller than the sum of its proper divisors (18475648826400).

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

6673421520000 is an frugal number, since it uses more digits than its factorization.

6673421520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 6673421520000 its reverse (251243766), we get a palindrome (6673672763766).

The spelling of 6673421520000 in words is "six trillion, six hundred seventy-three billion, four hundred twenty-one million, five hundred twenty thousand".