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130668782537 is a prime number
BaseRepresentation
bin111100110110001110…
…1110110001111001001
3110111021112100220210102
41321230131312033021
54120102202020122
6140010045255145
712304044216446
oct1715435661711
9414245326712
10130668782537
1150464137377
12213a88644b5
13c425603a47
1464782389cd
1535eb91b492
hex1e6c7763c9

130668782537 has 2 divisors, whose sum is σ = 130668782538. Its totient is φ = 130668782536.

The previous prime is 130668782471. The next prime is 130668782551. The reversal of 130668782537 is 735287866031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126263672896 + 4405109641 = 355336^2 + 66371^2 .

It is a cyclic number.

It is not a de Polignac number, because 130668782537 - 28 = 130668782281 is a prime.

It is not a weakly prime, because it can be changed into another prime (130668782597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65334391268 + 65334391269.

It is an arithmetic number, because the mean of its divisors is an integer number (65334391269).

Almost surely, 2130668782537 is an apocalyptic number.

It is an amenable number.

130668782537 is a deficient number, since it is larger than the sum of its proper divisors (1).

130668782537 is an equidigital number, since it uses as much as digits as its factorization.

130668782537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 130668782537 in words is "one hundred thirty billion, six hundred sixty-eight million, seven hundred eighty-two thousand, five hundred thirty-seven".