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6663144062988 = 2233717622183339
BaseRepresentation
bin110000011110110001001…
…0101011100000000001100
3212120222201222002100202000
41200331202111130000030
51333132104340003423
622101001153432300
71255252631021250
oct140754225340014
925528658070660
106663144062988
112139907130076
128b744156b690
13394440c2c48a
141906d8310260
15b84cc5a7843
hex60f6255c00c

6663144062988 has 192 divisors, whose sum is σ = 20907592473600. Its totient is φ = 1791460316160.

The previous prime is 6663144062857. The next prime is 6663144063007. The reversal of 6663144062988 is 8892604413666.

It is a super-2 number, since 2×66631440629882 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79910623 + ... + 79993961.

It is an arithmetic number, because the mean of its divisors is an integer number (108893710800).

Almost surely, 26663144062988 is an apocalyptic number.

6663144062988 is a gapful number since it is divisible by the number (68) 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 6663144062988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10453796236800).

6663144062988 is an abundant number, since it is smaller than the sum of its proper divisors (14244448410612).

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

6663144062988 is a wasteful number, since it uses less digits than its factorization.

6663144062988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89597 (or 89589 counting only the distinct ones).

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

The spelling of 6663144062988 in words is "six trillion, six hundred sixty-three billion, one hundred forty-four million, sixty-two thousand, nine hundred eighty-eight".