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66950343468 = 22323675067389
BaseRepresentation
bin111110010110100011…
…010010101100101100
320101210212212211120200
4332112203102230230
52044103241442333
650431230113500
74560043346511
oct762643225454
9211725784520
1066950343468
11264367a5a78
1210b8564b890
13640c698168
1433519a5308
151b1ca0dc13
hexf968d2b2c

66950343468 has 36 divisors (see below), whose sum is σ = 169696756320. Its totient is φ = 22255968096.

The previous prime is 66950343451. The next prime is 66950343503. The reversal of 66950343468 is 86434305966.

66950343468 is a `hidden beast` number, since 66 + 95 + 0 + 3 + 434 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 2520483 + ... + 2546906.

Almost surely, 266950343468 is an apocalyptic number.

It is an amenable number.

66950343468 is an abundant number, since it is smaller than the sum of its proper divisors (102746412852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66950343468 is a wasteful number, since it uses less digits than its factorization.

66950343468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067766 (or 5067761 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 66950343468 in words is "sixty-six billion, nine hundred fifty million, three hundred forty-three thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 367 734 1101 1468 2202 3303 4404 6606 13212 5067389 10134778 15202167 20269556 30404334 45606501 60808668 91213002 182426004 1859731763 3719463526 5579195289 7438927052 11158390578 16737585867 22316781156 33475171734 66950343468