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66643101140341 = 118239937352567
BaseRepresentation
bin11110010011100100011100…
…10111101100010101110101
322201222000111022011220122211
433021302032113230111311
532213340032342442331
6353423230142453421
720015543113103125
oct1711621627542565
9281860438156584
1066643101140341
111a2641a92367a0
127583a67894271
132b2555725510b
141265786b8ac85
157a88177618b1
hex3c9c8e5ec575

66643101140341 has 8 divisors (see below), whose sum is σ = 72701662999104. Its totient is φ = 60584555634720.

The previous prime is 66643101140303. The next prime is 66643101140393. The reversal of 66643101140341 is 14304110134666.

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

It is a cyclic number.

It is not a de Polignac number, because 66643101140341 - 211 = 66643101138293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66643101140294 and 66643101140303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66643101150341) 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, 5387640 + ... + 12740206.

It is an arithmetic number, because the mean of its divisors is an integer number (9087707874888).

Almost surely, 266643101140341 is an apocalyptic number.

It is an amenable number.

66643101140341 is a deficient number, since it is larger than the sum of its proper divisors (6058561858763).

66643101140341 is a wasteful number, since it uses less digits than its factorization.

66643101140341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176571.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 66643101140341 in words is "sixty-six trillion, six hundred forty-three billion, one hundred one million, one hundred forty thousand, three hundred forty-one".

Divisors: 1 11 823993 7352567 9063923 80878237 6058463740031 66643101140341