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11685007544681 is a prime number
BaseRepresentation
bin1010101000001010000010…
…1110010101000101101001
31112101002001021012102201102
42222002200232111011221
53012421343412412211
640504003544331145
72314133244222512
oct252024056250551
945332037172642
1011685007544681
1137a5647149a69
121388771473ab5
13669b78787053
142c57b365ba09
15153e4943ca3b
hexaa0a0b95169

11685007544681 has 2 divisors, whose sum is σ = 11685007544682. Its totient is φ = 11685007544680.

The previous prime is 11685007544671. The next prime is 11685007544699. The reversal of 11685007544681 is 18644570058611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10749742542400 + 935265002281 = 3278680^2 + 967091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11685007544681 is a prime.

It is a super-2 number, since 2×116850075446812 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11685007544671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842503772340 + 5842503772341.

It is an arithmetic number, because the mean of its divisors is an integer number (5842503772341).

Almost surely, 211685007544681 is an apocalyptic number.

It is an amenable number.

11685007544681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11685007544681 is an equidigital number, since it uses as much as digits as its factorization.

11685007544681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 11685007544681 in words is "eleven trillion, six hundred eighty-five billion, seven million, five hundred forty-four thousand, six hundred eighty-one".