Search a number
-
+
65660151605137 is a prime number
BaseRepresentation
bin11101110110111101100100…
…00000110010011110010001
322121111001022212012211202221
432323132302000302132101
532101233442302331022
6351351505054541041
716554534523650025
oct1673366200623621
9277431285184687
1065660151605137
1119a1534a908421
127445463b07781
132a8395856b7cb
14122dd7addc385
1578ce87d3ecc7
hex3bb7b2032791

65660151605137 has 2 divisors, whose sum is σ = 65660151605138. Its totient is φ = 65660151605136.

The previous prime is 65660151605131. The next prime is 65660151605173. The reversal of 65660151605137 is 73150615106656.

It is a happy number.

Together with next prime (65660151605173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57437618295121 + 8222533310016 = 7578761^2 + 2867496^2 .

It is a cyclic number.

It is not a de Polignac number, because 65660151605137 - 239 = 65110395791249 is a prime.

It is a super-2 number, since 2×656601516051372 (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65660151605131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32830075802568 + 32830075802569.

It is an arithmetic number, because the mean of its divisors is an integer number (32830075802569).

Almost surely, 265660151605137 is an apocalyptic number.

It is an amenable number.

65660151605137 is a deficient number, since it is larger than the sum of its proper divisors (1).

65660151605137 is an equidigital number, since it uses as much as digits as its factorization.

65660151605137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 65660151605137 in words is "sixty-five trillion, six hundred sixty billion, one hundred fifty-one million, six hundred five thousand, one hundred thirty-seven".