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66605035341 = 3131707821419
BaseRepresentation
bin111110000001111110…
…000010111101001101
320100220211010100212210
4332001332002331031
52042401342112331
650333053021033
74545351313335
oct760176027515
9210824110783
1066605035341
1126279895959
1210aa9a84779
136385c95720
14331bb9a0c5
151aec550446
hexf81f82f4d

66605035341 has 8 divisors (see below), whose sum is σ = 95637999520. Its totient is φ = 40987714032.

The previous prime is 66605035339. The next prime is 66605035361. The reversal of 66605035341 is 14353050666.

It is a happy number.

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

It is not a de Polignac number, because 66605035341 - 21 = 66605035339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1707821419 = 66605035341 / (6 + 6 + 6 + 0 + 5 + 0 + 3 + 5 + 3 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66605035341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66605035361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853910671 + ... + 853910748.

It is an arithmetic number, because the mean of its divisors is an integer number (11954749940).

Almost surely, 266605035341 is an apocalyptic number.

It is an amenable number.

66605035341 is a deficient number, since it is larger than the sum of its proper divisors (29032964179).

66605035341 is a wasteful number, since it uses less digits than its factorization.

66605035341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707821435.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 66605035341 in words is "sixty-six billion, six hundred five million, thirty-five thousand, three hundred forty-one".

Divisors: 1 3 13 39 1707821419 5123464257 22201678447 66605035341