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51660151105 = 538926560489
BaseRepresentation
bin110000000111001011…
…110101100101000001
311221100021200120210211
4300013023311211001
51321244444313410
635422104154121
73506121016303
oct600713654501
9157307616724
1051660151105
111a9aa899162
12a018a68941
134b439a6464
142701001973
1515254c668a
hexc072f5941

51660151105 has 8 divisors (see below), whose sum is σ = 62151546600. Its totient is φ = 41221877376.

The previous prime is 51660151033. The next prime is 51660151117. The reversal of 51660151105 is 50115106615.

It can be written as a sum of positive squares in 4 ways, for example, as 8610540849 + 43049610256 = 92793^2 + 207484^2 .

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 51660151105 - 27 = 51660150977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13278300 + ... + 13282189.

It is an arithmetic number, because the mean of its divisors is an integer number (7768943325).

Almost surely, 251660151105 is an apocalyptic number.

It is an amenable number.

51660151105 is a deficient number, since it is larger than the sum of its proper divisors (10491395495).

51660151105 is a wasteful number, since it uses less digits than its factorization.

51660151105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26560883.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 51660151105 in words is "fifty-one billion, six hundred sixty million, one hundred fifty-one thousand, one hundred five".

Divisors: 1 5 389 1945 26560489 132802445 10332030221 51660151105