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6680981913600 = 214352311271381
BaseRepresentation
bin110000100111000100110…
…0011011100000000000000
3212122200210010011001121210
41201032021203130000000
51333430122332213400
622113111204450120
71256453650162521
oct141161143340000
925580703131553
106680981913600
112146430132275
128ba99b3a9940
13396024698b77
1419150b3ac848
15b8bc35d1950
hex613898dc000

6680981913600 has 720 divisors, whose sum is σ = 22999921688576. Its totient is φ = 1709309952000.

The previous prime is 6680981913583. The next prime is 6680981913601. The reversal of 6680981913600 is 63191890866.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680981913601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4837784910 + ... + 4837786290.

Almost surely, 26680981913600 is an apocalyptic number.

6680981913600 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 6680981913600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11499960844288).

6680981913600 is an abundant number, since it is smaller than the sum of its proper divisors (16318939774976).

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

6680981913600 is a wasteful number, since it uses less digits than its factorization.

6680981913600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 57.

The spelling of 6680981913600 in words is "six trillion, six hundred eighty billion, nine hundred eighty-one million, nine hundred thirteen thousand, six hundred".