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66122321033 = 379199387539
BaseRepresentation
bin111101100101001100…
…101000110010001001
320022200011210221100002
4331211030220302021
52040404303233113
650213130452345
74530400312106
oct754514506211
9208604727302
1066122321033
112605136550a
12109942940b5
136309c83462
1432b3a23aad
151abee9dc58
hexf65328c89

66122321033 has 8 divisors (see below), whose sum is σ = 66330808800. Its totient is φ = 65914013088.

The previous prime is 66122321011. The next prime is 66122321063. The reversal of 66122321033 is 33012322166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66122321033 - 212 = 66122316937 is a prime.

It is a super-2 number, since 2×661223210332 (a number of 22 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 = 66122320987 and 66122321005.

It is not an unprimeable number, because it can be changed into a prime (66122321063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711578 + ... + 799116.

It is an arithmetic number, because the mean of its divisors is an integer number (8291351100).

Almost surely, 266122321033 is an apocalyptic number.

It is an amenable number.

66122321033 is a deficient number, since it is larger than the sum of its proper divisors (208487767).

66122321033 is a wasteful number, since it uses less digits than its factorization.

66122321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89911.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 66122321033 its reverse (33012322166), we get a palindrome (99134643199).

The spelling of 66122321033 in words is "sixty-six billion, one hundred twenty-two million, three hundred twenty-one thousand, thirty-three".

Divisors: 1 379 1993 87539 755347 33177281 174465227 66122321033