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16055664237 = 34520938053
BaseRepresentation
bin11101111001111110…
…11111111001101101
31112102221120020210000
432330333133321231
5230340222223422
611213104334513
71105605615504
oct167477377155
945387506700
1016055664237
11689a0051a8
123141014439
13168b475852
14ac450183b
1563e83dcac
hex3bcfdfe6d

16055664237 has 20 divisors (see below), whose sum is σ = 23989622140. Its totient is φ = 10701440064.

The previous prime is 16055664223. The next prime is 16055664253. The reversal of 16055664237 is 73246655061.

16055664237 is a `hidden beast` number, since 1 + 6 + 0 + 556 + 64 + 2 + 37 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12322332036 + 3733332201 = 111006^2 + 61101^2 .

It is not a de Polignac number, because 16055664237 - 210 = 16055663213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16055664192 and 16055664201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16055664437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 402903 + ... + 440955.

It is an arithmetic number, because the mean of its divisors is an integer number (1199481107).

Almost surely, 216055664237 is an apocalyptic number.

It is an amenable number.

16055664237 is a deficient number, since it is larger than the sum of its proper divisors (7933957903).

16055664237 is an equidigital number, since it uses as much as digits as its factorization.

16055664237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43274 (or 43265 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 16055664237 in words is "sixteen billion, fifty-five million, six hundred sixty-four thousand, two hundred thirty-seven".

Divisors: 1 3 9 27 81 5209 15627 38053 46881 114159 140643 342477 421929 1027431 3082293 198218077 594654231 1783962693 5351888079 16055664237