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66145414482 = 233733571181
BaseRepresentation
bin111101100110100100…
…101110110101010010
320022201210021012121000
4331212210232311102
52040431211230412
650215313442430
74531100514000
oct754644566522
9208653235530
1066145414482
11260633a8a04
121099bb70416
1363119aa914
1432b6b15a70
151ac20114dc
hexf6692ed52

66145414482 has 64 divisors (see below), whose sum is σ = 171416736000. Its totient is φ = 18898684560.

The previous prime is 66145414471. The next prime is 66145414483. The reversal of 66145414482 is 28441454166.

66145414482 is a `hidden beast` number, since 6 + 61 + 4 + 541 + 4 + 48 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (66145414483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767069 + ... + 1804112.

It is an arithmetic number, because the mean of its divisors is an integer number (2678386500).

Almost surely, 266145414482 is an apocalyptic number.

66145414482 is an abundant number, since it is smaller than the sum of its proper divisors (105271321518).

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

66145414482 is a wasteful number, since it uses less digits than its factorization.

66145414482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571213 (or 3571193 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 66145414482 in words is "sixty-six billion, one hundred forty-five million, four hundred fourteen thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 49 54 63 98 126 147 189 294 343 378 441 686 882 1029 1323 2058 2646 3087 6174 9261 18522 3571181 7142362 10713543 21427086 24998267 32140629 49996534 64281258 74994801 96421887 149989602 174987869 192843774 224984403 349975738 449968806 524963607 674953209 1049927214 1224915083 1349906418 1574890821 2449830166 3149781642 3674745249 4724672463 7349490498 9449344926 11024235747 22048471494 33072707241 66145414482