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66622314954 = 23133127552653
BaseRepresentation
bin111110000010111111…
…111101100111001010
320100222000122021001110
4332002333331213022
52042420303034304
650334511231150
74545651222246
oct760277754712
9210860567043
1066622314954
1126288618328
1210ab38184b6
136389735850
1433201b7426
151aedd15289
hexf82ffd9ca

66622314954 has 32 divisors (see below), whose sum is σ = 148123067904. Its totient is φ = 19837909440.

The previous prime is 66622314893. The next prime is 66622315013. The reversal of 66622314954 is 45941322666.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13773909 + ... + 13778744.

It is an arithmetic number, because the mean of its divisors is an integer number (4628845872).

Almost surely, 266622314954 is an apocalyptic number.

66622314954 is an abundant number, since it is smaller than the sum of its proper divisors (81500752950).

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

66622314954 is a wasteful number, since it uses less digits than its factorization.

66622314954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27552702.

The product of its digits is 1866240, while the sum is 48.

The spelling of 66622314954 in words is "sixty-six billion, six hundred twenty-two million, three hundred fourteen thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 13 26 31 39 62 78 93 186 403 806 1209 2418 27552653 55105306 82657959 165315918 358184489 716368978 854132243 1074553467 1708264486 2149106934 2562396729 5124793458 11103719159 22207438318 33311157477 66622314954