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58166206681 = 1119990128109
BaseRepresentation
bin110110001010111110…
…011110000011011001
312120010200222110020011
4312022332132003121
51423111022103211
642415435401521
74126261412332
oct661276360331
9176120873204
1058166206681
1122739341aa0
12b3338b32a1
13563c86769b
142b5b101289
1517a6771921
hexd8af9e0d9

58166206681 has 16 divisors (see below), whose sum is σ = 66802852800. Its totient is φ = 50088456000.

The previous prime is 58166206669. The next prime is 58166206691. The reversal of 58166206681 is 18660266185.

It is not a de Polignac number, because 58166206681 - 29 = 58166206169 is a prime.

It is a super-2 number, since 2×581662066812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58166206621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055255 + ... + 2083363.

It is an arithmetic number, because the mean of its divisors is an integer number (4175178300).

Almost surely, 258166206681 is an apocalyptic number.

It is an amenable number.

58166206681 is a deficient number, since it is larger than the sum of its proper divisors (8636646119).

58166206681 is a wasteful number, since it uses less digits than its factorization.

58166206681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38040.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 58166206681 in words is "fifty-eight billion, one hundred sixty-six million, two hundred six thousand, six hundred eighty-one".

Divisors: 1 11 19 209 9901 28109 108911 188119 309199 534071 2069309 5874781 278307209 3061379299 5287836971 58166206681