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66050973495 = 32513112907647
BaseRepresentation
bin111101100000111100…
…011101111100110111
320022111012120002220200
4331200330131330313
52040233022122440
650202101331543
74525543003563
oct754074357467
9208435502820
1066050973495
1126015064001
1210974406bb3
1362c8262490
1432a83706a3
151ab8aa8c30
hexf60f1df37

66050973495 has 24 divisors (see below), whose sum is σ = 123295151616. Its totient is φ = 32517402048.

The previous prime is 66050973481. The next prime is 66050973517. The reversal of 66050973495 is 59437905066.

66050973495 is a `hidden beast` number, since 6 + 60 + 5 + 0 + 97 + 3 + 495 = 666.

It is not a de Polignac number, because 66050973495 - 26 = 66050973431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56453239 + ... + 56454408.

It is an arithmetic number, because the mean of its divisors is an integer number (5137297984).

Almost surely, 266050973495 is an apocalyptic number.

66050973495 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66050973495 is a deficient number, since it is larger than the sum of its proper divisors (57244178121).

66050973495 is a wasteful number, since it uses less digits than its factorization.

66050973495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112907671 (or 112907668 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The spelling of 66050973495 in words is "sixty-six billion, fifty million, nine hundred seventy-three thousand, four hundred ninety-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 112907647 338722941 564538235 1016168823 1467799411 1693614705 4403398233 5080844115 7338997055 13210194699 22016991165 66050973495