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666000484009 = 72321131591631
BaseRepresentation
bin10011011000100001011…
…10001110011010101001
32100200001201102000211221
421230100232032122221
541402432110442014
61225542325422041
766055053465130
oct11542056163251
92320051360757
10666000484009
112374a3a02053
12a90aa26a921
134aa5a5c2843
142433da30917
15124ce2a1b24
hex9b10b8e6a9

666000484009 has 24 divisors (see below), whose sum is σ = 802717316352. Its totient is φ = 541205132160.

The previous prime is 666000484001. The next prime is 666000484027. The reversal of 666000484009 is 900484000666.

It is not a de Polignac number, because 666000484009 - 23 = 666000484001 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (666000484001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377377 + ... + 1214254.

It is an arithmetic number, because the mean of its divisors is an integer number (33446554848).

Almost surely, 2666000484009 is an apocalyptic number.

It is an amenable number.

666000484009 is a deficient number, since it is larger than the sum of its proper divisors (136716832343).

666000484009 is a wasteful number, since it uses less digits than its factorization.

666000484009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591797 (or 1591774 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 666000484009 in words is "six hundred sixty-six billion, four hundred eighty-four thousand, nine".

Divisors: 1 7 23 113 161 529 791 2599 3703 18193 59777 418439 1591631 11141417 36607513 179854303 256252591 841972799 1258980121 4136648969 5893809593 28956542783 95142926287 666000484009