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57116605069 is a prime number
BaseRepresentation
bin110101001100011010…
…100011101010001101
312110102112222011111101
4311030122203222031
51413433322330234
642123343023101
74061255063326
oct651432435215
9173375864441
1057116605069
112224a91a847
12b0a029aa91
135503281544
142a9b96144d
151744543814
hexd4c6a3a8d

57116605069 has 2 divisors, whose sum is σ = 57116605070. Its totient is φ = 57116605068.

The previous prime is 57116605067. The next prime is 57116605097. The reversal of 57116605069 is 96050661175.

57116605069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55054991044 + 2061614025 = 234638^2 + 45405^2 .

It is a cyclic number.

It is not a de Polignac number, because 57116605069 - 21 = 57116605067 is a prime.

It is a super-2 number, since 2×571166050692 (a number of 22 digits) contains 22 as substring.

Together with 57116605067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57116605067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28558302534 + 28558302535.

It is an arithmetic number, because the mean of its divisors is an integer number (28558302535).

Almost surely, 257116605069 is an apocalyptic number.

It is an amenable number.

57116605069 is a deficient number, since it is larger than the sum of its proper divisors (1).

57116605069 is an equidigital number, since it uses as much as digits as its factorization.

57116605069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 57116605069 in words is "fifty-seven billion, one hundred sixteen million, six hundred five thousand, sixty-nine".