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668051256799 is a prime number
BaseRepresentation
bin10011011100010101111…
…01010011010111011111
32100212100122022002020201
421232022331103113133
541421132110204144
61230522024524331
766156634663423
oct11561275232737
92325318262221
10668051256799
11238356577aa3
12a95810206a7
134acc6435c74
1424496144b83
151259e3431d4
hex9b8af535df

668051256799 has 2 divisors, whose sum is σ = 668051256800. Its totient is φ = 668051256798.

The previous prime is 668051256793. The next prime is 668051256811. The reversal of 668051256799 is 997652150866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668051256799 - 29 = 668051256287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 668051256799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668051256793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334025628399 + 334025628400.

It is an arithmetic number, because the mean of its divisors is an integer number (334025628400).

Almost surely, 2668051256799 is an apocalyptic number.

668051256799 is a deficient number, since it is larger than the sum of its proper divisors (1).

668051256799 is an equidigital number, since it uses as much as digits as its factorization.

668051256799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 668051256799 in words is "six hundred sixty-eight billion, fifty-one million, two hundred fifty-six thousand, seven hundred ninety-nine".