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66275078318 = 279419462521
BaseRepresentation
bin111101101110010011…
…010111000010101110
320100001211020210221022
4331232103113002232
52041212410001233
650240224534142
74534233604451
oct755623270256
9210054223838
1066275078318
112611a6102a9
1210a17481352
136332809397
1432ca029498
151acd5c5398
hexf6e4d70ae

66275078318 has 8 divisors (see below), whose sum is σ = 100671005280. Its totient is φ = 32718076560.

The previous prime is 66275078263. The next prime is 66275078333. The reversal of 66275078318 is 81387057266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66275078318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209731103 + ... + 209731418.

It is an arithmetic number, because the mean of its divisors is an integer number (12583875660).

Almost surely, 266275078318 is an apocalyptic number.

66275078318 is a deficient number, since it is larger than the sum of its proper divisors (34395926962).

66275078318 is a wasteful number, since it uses less digits than its factorization.

66275078318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419462602.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 66275078318 in words is "sixty-six billion, two hundred seventy-five million, seventy-eight thousand, three hundred eighteen".

Divisors: 1 2 79 158 419462521 838925042 33137539159 66275078318