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66082006768 = 244787875009
BaseRepresentation
bin111101100010110010…
…110110011011110000
320022120100221202120011
4331202302312123300
52040313443204033
650205130424304
74526400534601
oct754262663360
9208510852504
1066082006768
112603062a838
1210982892094
13630180986b
1432ac52bda8
151abb688ccd
hexf62cb66f0

66082006768 has 20 divisors (see below), whose sum is σ = 130758014880. Its totient is φ = 32338002944.

The previous prime is 66082006759. The next prime is 66082006769. The reversal of 66082006768 is 86760028066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66082006769) 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, 43936753 + ... + 43938256.

It is an arithmetic number, because the mean of its divisors is an integer number (6537900744).

Almost surely, 266082006768 is an apocalyptic number.

It is an amenable number.

66082006768 is a deficient number, since it is larger than the sum of its proper divisors (64676008112).

66082006768 is a wasteful number, since it uses less digits than its factorization.

66082006768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87875064 (or 87875058 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 66082006768 in words is "sixty-six billion, eighty-two million, six thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 47 94 188 376 752 87875009 175750018 351500036 703000072 1406000144 4130125423 8260250846 16520501692 33041003384 66082006768