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65116015055 = 5713143112121
BaseRepresentation
bin111100101001001101…
…111000100111001111
320020002001021022001022
4330221031320213033
52031324144440210
645525222104355
74463430665330
oct745115704717
9206061238038
1065116015055
1125685324983
121075327b0bb
1361a9648c30
14321a114287
151a61974155
hexf293789cf

65116015055 has 16 divisors (see below), whose sum is σ = 96171345984. Its totient is φ = 41216290560.

The previous prime is 65116015043. The next prime is 65116015057. The reversal of 65116015055 is 55051061156.

It is a de Polignac number, because none of the positive numbers 2k-65116015055 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65116015057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71555606 + ... + 71556515.

It is an arithmetic number, because the mean of its divisors is an integer number (6010709124).

Almost surely, 265116015055 is an apocalyptic number.

65116015055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65116015055 is a deficient number, since it is larger than the sum of its proper divisors (31055330929).

65116015055 is a wasteful number, since it uses less digits than its factorization.

65116015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143112146.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 65116015055 in words is "sixty-five billion, one hundred sixteen million, fifteen thousand, fifty-five".

Divisors: 1 5 7 13 35 65 91 455 143112121 715560605 1001784847 1860457573 5008924235 9302287865 13023203011 65116015055