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66344725130 = 25173323117443
BaseRepresentation
bin111101110010011101…
…000010101010001010
320100020200022020101212
4331302131002222022
52041333222201010
650251153413122
74536040600415
oct756235025212
9210220266355
1066344725130
112615595aa52
1210a3686a1a2
136344083208
1432d5398b7c
151ad4781505
hexf72742a8a

66344725130 has 32 divisors (see below), whose sum is σ = 126484369344. Its totient is φ = 24969108736.

The previous prime is 66344725121. The next prime is 66344725163. The reversal of 66344725130 is 3152744366.

66344725130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506189 + ... + 623631.

It is an arithmetic number, because the mean of its divisors is an integer number (3952636542).

Almost surely, 266344725130 is an apocalyptic number.

66344725130 is a deficient number, since it is larger than the sum of its proper divisors (60139644214).

66344725130 is a wasteful number, since it uses less digits than its factorization.

66344725130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120790.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 66344725130 in words is "sixty-six billion, three hundred forty-four million, seven hundred twenty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 3323 6646 16615 33230 56491 112982 117443 234886 282455 564910 587215 1174430 1996531 3993062 9982655 19965310 390263089 780526178 1951315445 3902630890 6634472513 13268945026 33172362565 66344725130