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66130124345225 = 5217198663945341
BaseRepresentation
bin11110000100101000111101…
…00100100000111110001001
322200010222102001211201001222
433002110132210200332021
532131433443313021400
6352351432033451425
716633513062223523
oct1702243644407611
9280128361751058
1066130124345225
111a0866a0203036
127500564a10b75
132ab907579b765
141248a0231ca13
1579a2e2762185
hex3c251e920f89

66130124345225 has 48 divisors (see below), whose sum is σ = 91405344862080. Its totient is φ = 47165962060800.

The previous prime is 66130124345209. The next prime is 66130124345303. The reversal of 66130124345225 is 52254342103166.

It is not a de Polignac number, because 66130124345225 - 24 = 66130124345209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69481055 + ... + 70426395.

It is an arithmetic number, because the mean of its divisors is an integer number (1904278017960).

Almost surely, 266130124345225 is an apocalyptic number.

It is an amenable number.

66130124345225 is a deficient number, since it is larger than the sum of its proper divisors (25275220516855).

66130124345225 is a wasteful number, since it uses less digits than its factorization.

66130124345225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954050 (or 954045 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 66130124345225 in words is "sixty-six trillion, one hundred thirty billion, one hundred twenty-four million, three hundred forty-five thousand, two hundred twenty-five".

Divisors: 1 5 17 19 25 85 95 323 425 475 1615 8075 8663 43315 147271 164597 216575 736355 822985 945341 2798149 3681775 4114925 4726705 13990745 16070797 17961479 23633525 69953725 80353985 89807395 305345143 401769925 449036975 1526725715 7633628575 8189489083 40947445415 139221314411 155600292577 204737227075 696106572055 778001462885 2645204973809 3480532860275 3890007314425 13226024869045 66130124345225