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56816181041 is a prime number
BaseRepresentation
bin110100111010100000…
…100001111100110001
312102122121200001012112
4310322200201330301
51412324420243131
642033451535105
74050646366454
oct647240417461
9172577601175
1056816181041
1122106286824
12b01775a495
135485c65749
142a6dabb49b
151727e9e02b
hexd3a821f31

56816181041 has 2 divisors, whose sum is σ = 56816181042. Its totient is φ = 56816181040.

The previous prime is 56816181031. The next prime is 56816181047. The reversal of 56816181041 is 14018161865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51021774400 + 5794406641 = 225880^2 + 76121^2 .

It is a cyclic number.

It is not a de Polignac number, because 56816181041 - 210 = 56816180017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56816181041.

It is not a weakly prime, because it can be changed into another prime (56816181047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408090520 + 28408090521.

It is an arithmetic number, because the mean of its divisors is an integer number (28408090521).

Almost surely, 256816181041 is an apocalyptic number.

It is an amenable number.

56816181041 is a deficient number, since it is larger than the sum of its proper divisors (1).

56816181041 is an equidigital number, since it uses as much as digits as its factorization.

56816181041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 41.

The spelling of 56816181041 in words is "fifty-six billion, eight hundred sixteen million, one hundred eighty-one thousand, forty-one".