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8666435314541 = 40121612058141
BaseRepresentation
bin111111000011100111111…
…0011000110001101101101
31010200111120210000010001202
41332013033303012031231
52113442324420031131
630233145545415245
71553062226504024
oct176071763061555
933614523003052
108666435314541
11284146188a964
12b7b74379a525
134ab31a301b74
1421d659d3d8bb
151006794aabcb
hex7e1cfcc636d

8666435314541 has 4 divisors (see below), whose sum is σ = 8688047373084. Its totient is φ = 8644823256000.

The previous prime is 8666435314507. The next prime is 8666435314561. The reversal of 8666435314541 is 1454135346668.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4520956072516 + 4145479242025 = 2126254^2 + 2036045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8666435314541 is a prime.

It is a super-2 number, since 2×86664353145412 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666435314561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10806028670 + ... + 10806029471.

It is an arithmetic number, because the mean of its divisors is an integer number (2172011843271).

Almost surely, 28666435314541 is an apocalyptic number.

It is an amenable number.

8666435314541 is a deficient number, since it is larger than the sum of its proper divisors (21612058543).

8666435314541 is a wasteful number, since it uses less digits than its factorization.

8666435314541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21612058542.

The product of its digits is 24883200, while the sum is 56.

The spelling of 8666435314541 in words is "eight trillion, six hundred sixty-six billion, four hundred thirty-five million, three hundred fourteen thousand, five hundred forty-one".

Divisors: 1 401 21612058141 8666435314541