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66480163848 = 23327197395101
BaseRepresentation
bin111101111010100001…
…101100110000001000
320100121010011020101200
4331322201230300020
52042122410220343
650312432344200
74542304032450
oct757241546010
9210533136350
1066480163848
112621535707a
1210a740a5060
136366154377
143309372d60
151ae15d64d3
hexf7a86cc08

66480163848 has 192 divisors, whose sum is σ = 219571497600. Its totient is φ = 17747942400.

The previous prime is 66480163843. The next prime is 66480163879. The reversal of 66480163848 is 84836108466.

66480163848 is a `hidden beast` number, since 66 + 480 + 1 + 63 + 8 + 48 = 666.

It is a super-2 number, since 2×664801638482 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66480163794 and 66480163803.

It is not an unprimeable number, because it can be changed into a prime (66480163843) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 651498 + ... + 746598.

It is an arithmetic number, because the mean of its divisors is an integer number (1143601550).

Almost surely, 266480163848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66480163848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109785748800).

66480163848 is an abundant number, since it is smaller than the sum of its proper divisors (153091333752).

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

66480163848 is a wasteful number, since it uses less digits than its factorization.

66480163848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95212 (or 95205 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 66480163848 in words is "sixty-six billion, four hundred eighty million, one hundred sixty-three thousand, eight hundred forty-eight".