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11663126141 = 18164437161
BaseRepresentation
bin10101101110010110…
…10010111001111101
31010002211020012021212
422313023102321331
5142341230014031
65205153134205
7562010636132
oct126713227175
933084205255
1011663126141
114a45592327
122315b5a365
13113b426094
147c8daa589
15483dcb12b
hex2b72d2e7d

11663126141 has 4 divisors (see below), whose sum is σ = 11727563484. Its totient is φ = 11598688800.

The previous prime is 11663126087. The next prime is 11663126159. The reversal of 11663126141 is 14162136611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118483225 + 11544642916 = 10885^2 + 107446^2 .

It is a cyclic number.

It is not a de Polignac number, because 11663126141 - 218 = 11662863997 is a prime.

It is a super-2 number, since 2×116631261412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11663126098 and 11663126107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663126161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32218400 + ... + 32218761.

It is an arithmetic number, because the mean of its divisors is an integer number (2931890871).

Almost surely, 211663126141 is an apocalyptic number.

It is an amenable number.

11663126141 is a deficient number, since it is larger than the sum of its proper divisors (64437343).

11663126141 is an equidigital number, since it uses as much as digits as its factorization.

11663126141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64437342.

The product of its digits is 5184, while the sum is 32.

The spelling of 11663126141 in words is "eleven billion, six hundred sixty-three million, one hundred twenty-six thousand, one hundred forty-one".

Divisors: 1 181 64437161 11663126141