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66130435413 = 3271049689451
BaseRepresentation
bin111101100101101011…
…100101110101010101
320022200202002012011200
4331211223211311111
52040413342413123
650214020423113
74530526266150
oct754553456525
9208622065150
1066130435413
11260559a7a09
1210996b47a99
13630b864973
1432b4b36c97
151ac0a53143
hexf65ae5d55

66130435413 has 12 divisors (see below), whose sum is σ = 109167703008. Its totient is φ = 37788820200.

The previous prime is 66130435403. The next prime is 66130435417. The reversal of 66130435413 is 31453403166.

66130435413 is a `hidden beast` number, since 6 + 613 + 0 + 4 + 35 + 4 + 1 + 3 = 666.

It is not a de Polignac number, because 66130435413 - 29 = 66130434901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66130435417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524844663 + ... + 524844788.

It is an arithmetic number, because the mean of its divisors is an integer number (9097308584).

Almost surely, 266130435413 is an apocalyptic number.

66130435413 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

66130435413 is a deficient number, since it is larger than the sum of its proper divisors (43037267595).

66130435413 is a wasteful number, since it uses less digits than its factorization.

66130435413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049689464 (or 1049689461 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 66130435413 its reverse (31453403166), we get a palindrome (97583838579).

The spelling of 66130435413 in words is "sixty-six billion, one hundred thirty million, four hundred thirty-five thousand, four hundred thirteen".

Divisors: 1 3 7 9 21 63 1049689451 3149068353 7347826157 9447205059 22043478471 66130435413