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79660168817 = 293861171143
BaseRepresentation
bin100101000110000011…
…1011011011001110001
321121121122122212020212
41022030013123121301
52301121000400232
6100332333513505
75520024156065
oct1121407333161
9247548585225
1079660168817
11308690a7969
1213532042895
1376868cc288
143bd9997aa5
152113742eb2
hex128c1db671

79660168817 has 8 divisors (see below), whose sum is σ = 82410363840. Its totient is φ = 76910193360.

The previous prime is 79660168807. The next prime is 79660168831. The reversal of 79660168817 is 71886106697.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79660168817 - 210 = 79660167793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79660168807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084148 + ... + 1155290.

It is an arithmetic number, because the mean of its divisors is an integer number (10301295480).

Almost surely, 279660168817 is an apocalyptic number.

It is an amenable number.

79660168817 is a deficient number, since it is larger than the sum of its proper divisors (2750195023).

79660168817 is a wasteful number, since it uses less digits than its factorization.

79660168817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109783.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 79660168817 in words is "seventy-nine billion, six hundred sixty million, one hundred sixty-eight thousand, eight hundred seventeen".

Divisors: 1 29 38611 71143 1119719 2063147 2746902373 79660168817