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66130082353 = 312133228463
BaseRepresentation
bin111101100101101010…
…001111101000110001
320022200201102020212101
4331211222033220301
52040413300113403
650214005100401
74530523265626
oct754552175061
9208621366771
1066130082353
1126055786725
12109969b7701
13630b77005a
1432b4a8434d
151ac09d371d
hexf65a8fa31

66130082353 has 4 divisors (see below), whose sum is σ = 68263310848. Its totient is φ = 63996853860.

The previous prime is 66130082329. The next prime is 66130082393. The reversal of 66130082353 is 35328003166.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66130082353 - 225 = 66096527921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66130082393) 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, 1066614201 + ... + 1066614262.

It is an arithmetic number, because the mean of its divisors is an integer number (17065827712).

Almost surely, 266130082353 is an apocalyptic number.

It is an amenable number.

66130082353 is a deficient number, since it is larger than the sum of its proper divisors (2133228495).

66130082353 is a wasteful number, since it uses less digits than its factorization.

66130082353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133228494.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 66130082353 in words is "sixty-six billion, one hundred thirty million, eighty-two thousand, three hundred fifty-three".

Divisors: 1 31 2133228463 66130082353