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66368782922 = 21319134349763
BaseRepresentation
bin111101110011111000…
…110100001001001010
320100022100120111111012
4331303320310021022
52041410402023142
650253413203522
74536452226641
oct756370641112
9210270514435
1066368782922
11261684a1a22
1210a429305a2
1363490575b0
1432d865c358
151ad6934882
hexf73e3424a

66368782922 has 16 divisors (see below), whose sum is σ = 112853801760. Its totient is φ = 29019548592.

The previous prime is 66368782897. The next prime is 66368782933. The reversal of 66368782922 is 22928786366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67174388 + ... + 67175375.

It is an arithmetic number, because the mean of its divisors is an integer number (7053362610).

Almost surely, 266368782922 is an apocalyptic number.

66368782922 is a deficient number, since it is larger than the sum of its proper divisors (46485018838).

66368782922 is a wasteful number, since it uses less digits than its factorization.

66368782922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134349797.

The product of its digits is 20901888, while the sum is 59.

The spelling of 66368782922 in words is "sixty-six billion, three hundred sixty-eight million, seven hundred eighty-two thousand, nine hundred twenty-two".

Divisors: 1 2 13 19 26 38 247 494 134349763 268699526 1746546919 2552645497 3493093838 5105290994 33184391461 66368782922